The Robert S. Arnold Architectural Collection consists of architectural plans, site surveys, perspective sketches, contracts, and job schedules. The collection contains materials relating to the Highland Park Library, The Moraine Hotel, and several prominent Highland Park residents. Homes, buildings, and churches from the Chicagoland area can also be found in the collection including Kelly's Day Camp in Wheeling, Illinois, St. Martins Church of Christ in Chicago, Illinois, and the Serbian Orthodox Monastery in Libertyville, Illinois. The collection also contains items relating to homes built outside the Chicagoland region, including those built in Troy, Alabama. This collection contains the exhibit plans for Arnold's submission for the Chicago Tribune's Chicagoland Prize Homes Exhibition. The collection originally contained 369 rolls. The collection still contains many of the rolls relating to Highland Park, Illinois. A large collection of rolls relating to Chicago, Illinois; Glencoe, Illinois; Wilmette, Illinois, and several other North Shore communities are missing. Seven rolls were deaccessioned to the Lake Forest Lake Bluff Historical Society in 2006. One roll was deaccessioned during 2010 processing as it did not fit in The Highland Park Historical Society's collection policy. It is unclear where the other rolls are located.

These two folders, created by the Highland Park Historical Society circa 1970, contain B/W images of the Millard house, portraits of Sylvester and Malcolm Millard, house and family related clippings and some correspondence regarding the City of Highland Park and pamphlets on state Parks and preservation.

The J.Marion Gutnayer Collection consists of 18 folders, the bulk of which are architectural drawings and plans. The collection spans two segments of Gutnayer's long career and focus on projects near and around Highland Park, Illinois. The collection consists of residential projects from the early to mid-1950s, residential homes for the early to mid-1980s, and several multi-dwelling buildings from the late 1980s. A large portion of the collection documents the McDaniel Square complex, a multi-unit dwelling built throughout the 1980s. The collection contains architectural plans, sketches, schedules, topography surveys, as well as legal correspondence and promotional materials related to McDaniel Square.

Henry X Arenberg's papers chiefly document his role in the civic life of Highland Park, Illinois. The bulk of this collection consists of event planning correspondence, committee participation records, and photographs of historic buildings and locations. It also contains a wide collection of newspaper clippings.

There are 6 series and 2 subseries the the collection. The first series is Oversized, which contains items that were too large to be placed in the other boxes, or awkwardly shaped items. The second series is General. It contains correspondence from committees and events that broadly interested Arenberg; including, but not exclusively, Highland Park or his photography. The third series is People, containing various people of Highland Park. The fourth series is Photographs, which contains general photographs not associated with a subseries, and then 2 subseries. The first subseries is Homes, which contains images of homes from around Highland Park. The second subseries is National Registry, which contains images of homes, monuments, and locations listed on or suggested to be listed on the National Registrar of Historic Places. The fifth series is Preservation, which contains information dealing with actions taken to preserve various locations, monuments, and buildings in Highland Park. The sixth and final series is Publications, which contains various books and articles that involved Henry Arenberg and were published either by himself of via the Highland Park Historical Society.

The Ernest A. Grunsfeld Jr collection contains hand drawn architectural plans, schedules, surveys, detailed notes, and blueprints. The collection is a combination of new construction undertaken by Grunsfled and various collaborators, including alterations Grunsfeld undertook on existing buildings. All the buildings covered are private residences and were built in the area now known as Highland Park, Illinois.

Highland Park B/W photo scrapbook documenting building of house on Lake Michigan in Highland Park, Illinois. Architects, builders, interior and exterior are featured with detailed descriptions. The house, located at 2445 Woodbridge, was built by the Lawerence Stein family.

Correspondence, clippings, images and detailed inventories and documentation, pamphlets, printed materials compiled by Better Homes in America campaign local chairman Babette S Kornblith. This scrapbook documents the Better Homes in America campaign and Deerfield-Shields High School Vocational Program, the cooperative work between the two groups and ensuing recognition, 1930-1931.

Records, including original blueprints, specifications, floor plan, graphic rendering, bill of sale, aerial survey, and plat of survey for 3292 University Ave. in Highland Park, Illinois.