Includes a narrative summary of some houses like the Sumner Bixby house, the Grinnell Historical Museum, and others, along with the resources consulted in the document, and a list of the history of 15 specific homes on East Street, Park Street, First Avenue, Fourth Avenue, Main Street, and Broad Street. Written by Pat Murphy in 1976. 30 pages.

This is a quick reference guide put together by the library archivist. It includes short descriptions of architects, where they were based, and the buildings they designed; mainly commercial buildings, including Bartlett, Benjamin J.; Eastman, Charles Edward; Holsman, Henry K.; Proudfood, Bird and Rawson; and Coutts, Robert G.; and many others. Includes 6 images in 30 pages.

“National Register of Historic Places Registration Form” for Grinnell Historic Commercial District Boundary Increase, includes function and use description, previously non-contributing buildings that have been re-evaluated, a resource tabulation and evaluation summary of addresses, styles, and building dates, statement of significance, added district buildings, and a table of Grinnell Commercial Historic District property owners, also includes various photos and maps, 183 pages

“National Register of Historic Places Registration Form” for the Grinnell Historic Commercial District, roughly bounded by Main, Broad, Commercial, and Fifth Avenue; includes introduction; massing, variety of composition, physical condition summary; a history of the area from 1870 to 1989; typology of buildings, individual site descriptions; and maps and images; 65 pages

“The Historical Residential Development of Grinnell, Poweshiek County, Iowa, 1855-1958,” by James E. Jacobsen with the History Pays! Historic Preservation Consulting Firm in Des Moines, Iowa, includes an introduction, Grinnell’s history and development, and individual and district residential property eligibility recommendations, graphs, maps, tables, and other images, 50 pages

“North Grinnell Historic District Individual House Histories,” includes photos, floor-plans, clips of books, and written descriptions, 355 pages

“North Grinnell House Data Spreadsheet,” for each house, includes date, owner, style, architect, history/first owner, materials/outbuildings, and evaluation (contributing or non-contributing), 14 pages

Search by name or address for current information and limited history, includes an interactive map

Sanborn fire insurance maps from 1883, 1888, 1893, 1898, 1906, 1911, 1922, 1932, of Grinnell, available from Library of Congress website, 102 images

“1878 City Directory-Sorted by Name (March 16, 2008),” transcribed data, table includes surname, first name(s), descriptor, house number, street, and business, 32 pages

Map of Grinnell in 1880s, 1 image

“Template for 1894-1895 City Directory for Grinnell,” transcribed data, table includes surname, first name(s), descriptor, house number, street, and business, 53 pages

“Atlas of Poweshiek County, Iowa, 1896,” images available from Iowa Digital Library, includes township maps, town plats, maps of Iowa, the world, portraits, and other supplemental information, 55 images

“1900 City Directory,” transcribed data, table includes surname, first name(s), descriptor, house number, street, and business, 81 pages

“1910 Grinnell City Directory,” transcribed data, table includes surname, first name(s), descriptor, house number, street, and business, 89 pages

Atlas and Plat Book of Poweshiek County, Iowa, with outline county map, plats of all the townships with owners’ names, plats of all towns in the county, state auto map, United States parcel post map, and others, available from Library of Congress website, 48 images

“1920 Grinnell Directory: Arranged by Street Address,” compiled by Dan Kaiser in February 2008, arranged alphabetically by street name, includes surname, first name(s), house number, descriptor, and business, 60 pages

“Plat Book of Poweshiek County, Iowa, 1930,” published by W. W. Hixon & Co., available from Iowa Digital Library, contains maps of the county and township maps showing land ownership, 18 images

“Plat Book of Poweshiek County, Iowa, 1938,” published by Stacy Map Publishers of Rockford, IL. Contains maps of the county and township maps showing land ownership.

“Polk’s Grinnell (Poweshiek County, IA.) City Directory, 1940,” from R. L. Polk & Co., including a written introduction, abbreviations, alphabetical list of names, and other information like churches, city government, libraries, state officials, and other city information, 191 pages

“Grinnell Iowa Con-Survey City Directory, Master Edition, 1962,” from the Mullin-Kille Company and the Grinnell Herald-Register, includes written introductory material, images (including portraits), alphabetical list of businesses, a telephone directory, and residents listed alphabetically by street name, then number, 234 pages

“Grinnell, Iowa, 1970 City Directory” from Johnson Publishing Company, Inc., includes abbreviations, alphabetical list of names, churches, city officials, business directory, clubs and organizations, county officials, general information, history, telephone directory, schools, and street and avenue guide, also includes some images, 187 pages

“Grinnell, Iowa, 1970 City Directory” from Johnson Publishing Company, Inc., includes abbreviations, alphabetical list of names, churches, city officials, business directory, clubs and organizations, county officials, general information, history, industries, schools, street and avenue guide, and telephone directory, also includes some images, 214 pages

“Johnson’s 1975 Special Residential Edition of the Grinnell, Iowa City Directory,” from Johnson Publishing Company, Inc., includes abbreviations, alphabetical list of names, chamber of commerce, churches, county officials, business directory, clubs and organizations, county officials, history, index to advertisers, schools, state and federal officials, and vital statistics, 173 pages