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Building the Historical Maps of New Jersey website


In March 2025, Sue Oldenburg and Francesca Giannetti interviewed Michael Siegel, Staff Cartographer, Department of Geography, Rutgers–New Brunswick. Mike is the creator and maintainer of the eminently browsable Historical Maps of New Jersey, Rutgers' oldest digital cartographic information resource, which continues to inform and delight map fans to this day. We discussed the origins of his site, the process of creating and maintaining it, and its enduring value to educators, researchers, and the community.

Figure 1. A screen capture of Mike Siegel from our Zoom interview.

Project Beginnings

The impetus for Historical Maps of New Jersey was a 2002 exhibit held in Alexander Library called “The Changing Landscape of New Brunswick, New Jersey.” Mike co-curated the exhibit with Dr. Briavel Holcomb, Professor Emerita of the Bloustein School of Planning and Public Policy. Most of the maps were selected from Special Collections and University Archives, Rutgers University Libraries. This was an “aha” moment for Mike, who wasn’t previously aware of the breadth of cartographic materials available at the Libraries. He created the website so that that the maps he imaged wouldn’t disappear at the close of the exhibit.

-        Mike: “I just had the idea that it was a shame when this exhibition was over, that all this material would just be taken down and put back in the drawer. So, I thought, because we couldn't put up the original material on display because we were scanning it anyway, I thought I would take a crack at putting some of it online. And it was really just having access to the web page, having access to the scans, it wouldn't have been possible if I had just walked into Special Collections and said “can I scan your stuff?” Because I definitely didn't follow the prescribed procedure for the reuse of materials, but it was all in the service of service, to the university and to New Jersey. Along the same vein, I just continued because it was a little bit addictive, once I had learned how to request the material from Special Collections. So I kept doing it and slowly adding to the site. I was taking baby steps because I always assumed that, you know, the next month these large institutions and libraries would be setting up their own sites and putting their collections online.”

With a handful of exceptions, the digital objects of Historical Maps of New Jersey are not yet represented in the BTAA Geoportal. Mike’s site has been a labor of ongoing curiosity and love, and the scans he produced and published are mostly what we’d call access versions. RUcore, the Rutgers institutional repository, implements a minimum standard for the preservation of scanned digital content, which would mean that many of the objects available on Historical Maps of New Jersey would need to be rescanned and described in greater detail. Our wish is to catch up to Mike’s work, but in the meantime, there’s a lot to be said for good enough versions:

-        Francesca: “There must have been some sense of disappointment, then, that your work didn't become obsolete. Nobody replaced you.”

-        Mike: “Yeah, but it's really slow. That's the other thing I learned about the institution. And to be fair, I was doing this... not quick so much as dirty. If an institution is to do this correctly, it takes so much more work. You know they need to record the original dimensions of the primary material and the age, if they have it, and the publisher. All the bibliographic information. I didn't do anything. I just scanned it and put it online so people could have easier access to it, which is fun. It's a great boon for unserious researchers and people doing genealogy...”

-        Francesca: “I don't think you give yourself enough credit. The work that you've done is also quite useful for serious researchers. Librarians and archivists get in our own way with insisting on things being done according to a certain standard. So I know why we do these things, obviously, but sometimes quick and dirty is...”

-        Mike: “Quicker, so that's a big that's a big reason why it wasn't done. I mean even at the Library of Congress, this monumental process [of digitization] was pretty slow. A big institution with bigger collections, [there’s] that assumption they have more resources, but they also have more demands on them and never enough resources and they have to decide what to put these resources towards. And converting from one medium to another and doing it to meet standards of uniformity... it's pretty complicated. You know, when you're actually doing this work, you get to realize there's a lot more to it than just putting collections online.”

Project Development

Mike initially focused on 19th century maps of his “backyard,” namely New Brunswick and other towns in Middlesex county, but he eventually expanded the site’s scope to include materials requested for teaching and classroom use, departmental collections, and more recent 20th and early 21st century examples. He initially found contemporary maps uninteresting, but as time passed, they became more significant. He continued to draw upon the maps of Special Collections and University Archives (SCUA) while adding those of the New Brunswick Free Public Library and Rutgers Geography.

-        Sue: “Do you remember the first SCUA map that you chose for yourself, for the website, not for the exhibition?”

-        Mike: “Yeah... there was a 19th century map of the town I live in, which wasn't part of the exhibition. But when I was in Special Collections and I saw this, that's where I had that experience of seeing How Lane, which I drive on all the time in North Brunswick, was the farm road to How Farm. And Metlars Lane is the road to Metlars’ farm [in Piscataway]. There's all different aspects of this [historical location information] that, as I've done other mapping projects and learned more about New Jersey, and Dutch settlers... You just put pieces together, more and more names that you might not have registered other than having heard about it. There's a certain disconnectedness of experience. Like I go to Davidson Mill Park near the border of North Brunswick and South Brunswick. It's a beautiful park and I never really thought about the name Davidson Mill, where it came from. Then you start realizing that all these places have “mill” in them for a reason, because they were mills and you start seeing these historical maps and you can see the mills on the waterways, and then you start seeing how the waterways connect with each other. And, you know, Milltown, which is the town next to my town, was a mill town. And you see that it's the same waterway coming off the Raritan River that's running through all these places that I go to but never thought how they're connected. And it's just a different way of looking at the world. And sometimes the maps can reveal that.”

Figure 2. 1876 map of North Brunswick showing the site of H. K. How’s farm.

Mike’s site has endured many technological shifts in the way digitized maps are presented on the web. Last year, he migrated from an HTML website with Adobe Flash dependencies to Joomla, the content management system used by the School of Arts and Sciences.

-        Mike: “Every gee wiz technology comes with the flip side that doesn't get mentioned during the PR [rollout] that there's a downside. And so because of security concerns, I was forced to migrate.  What else was it? All these different file formats to deal with (and) the fact that these historical map scans are so large and to try to put it online so people (with) modems can download it. You know, this is even before the [smart] phone. It's never clear and all these tech companies are always competing for [proprietary] formats. So I was experimenting as stuff became available. Was it Zoomify, which relied on Flash? It broke up these big scans into small pieces. And as a matter of fact, I heard from people after the transition. They missed being able to zoom and things like that and wondered when I was going to bring it back. But it's not coming back. At least, not in the foreseeable future. Who knows what next week may bring?”

Current Plans

With the permission of Rutgers University Press, Mike is currently republishing work created between 2005-2009 for a book called Mapping New Jersey: An Evolving Landscape.

-        Mike: “Dave Robinson, Distinguished Professor in the Geography Department and NJ State Climatologist, said some of his students were having trouble getting it (Mapping New Jersey). And I told him I would contact the people I worked with at Rutgers University Press to see if we could get a discount for the students. They said I could request to have the rights return to me. I finally contacted them a couple months ago and asked about put[ting] those maps online, even though a lot of them would be dated. That was a time of transition, when all these companies were wrestling with these same kind of things I mentioned, you know, like Microsoft Encarta, and all these reference books were trying to figure out what was next for them and books were coming out with CD-ROMs in the back. It was before we could go to Wikipedia but not long before. And I swear if it was perhaps a year or two later it would not have got the green light to be published. So I've started doing that and I'm hoping to use it as a vehicle to hire some students to give them some work. The reason I went off on how much of a transition period this was, we created the maps with as much looking backwards and as much historical aspect of the topic as possible, knowing that for the latest results, election results or whatever, people are going to go to the web. But to see fifty years of development that led up to where you are now is a lot harder to find.

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