This material includes a typescript of Roach's "An Account of Elfreth's Alley and Its People from the Earliest Times," an unpublished manuscript prepared for the Elfreth's Alley Association in 1958, and also research material related to this study, such as land and deed abstracts, and miscellaneous notes.

This dissertation discusses Nathaniel Chapman's participation in and influence on the medical profession in Philadelphia.

Providing a glimpse in to the private life of a genteel lady in the early republic, the Elizabeth Bordley Gibson Papers consist of over 200 letters and notes written during the years 1795 to 1863. The bulk of the letters cover the period 1848-1863, and involve Gibson's correspondence with members of her extended family. Elizabeth was related to the influential Bordley, Mifflin, and Shippen families, three of the more prominent families in colonial and early republic Pennsylvania and Maryland. Most of the correspondence in the collection comprises letters between Elizabeth Bordley Gibson and her cousin Edward Shippen and her nieces Elizabeth Mifflin, Anne C. Ross, and Elizabeth Stump. Complementing other early American history collections at APS, the Gibson Papers offers important insights in to women's history and the history of influential mid-Atlantic families in nineteenth-century America.

The papers include: minutes, 1794, 1802-1942; minutes of the Managing Committee and Committee of Seven, 1791-1950; rough minutes of the Managing Committee, 1819-1857; minutes of the Wardens, 1769-1919 (with some gaps); roll of members, 1841-1875; price books, 1786, ca. 1804, 1827, 1852; Price Book Committee minutes, 1786-1791, 1827-1897; price book of the Second Carpenters' Company, 1784; cash books, 1889-1952; treasurer's account, 1874-1907; ledgers, 1801-1896; record of certificates granted to measurers of carpenters' work, 1827-1889; account book, 1763-1834; minutes of the Building Committee, 1810 11; minutes of the Committee on fitting up the Old Hall, 1857; minutes of the Committees of Accounts and Rents, 1780-1784; minutes of the Library Committee, 1853-1889; receipts for books and library record of borrowers, 1846-1890; by-laws and rules and regulations and standing resolutions, ca. 1866-1869; minutes of the Friendship Carpenters' Company, 1770-1775; account of the Friendship Carpenters' Company, 1769-1799; rules and regulations of the Friendship Carpenters' Company and specifications for building, 1769; relief given to 12 widows, 1818; scrapbook, 1887-1892; Antiques, Curiosities, and Memorabilia, 1683-1855; autographs, pictures, etc., relating to the Centennial Anniversary, 1874; Trustees' minute book, 1895 1941; book of "Dementtions" of carpenter's work by Samuel Jones, 1784; real estate record, 1905-1918; receipt books, 1795-1918; and other materials. The whole collection has been filmed by APS. Recent deposits include: Miscellaneous bills, and bills and receipts relating to widows relief (1800-1854), Managing Committee minutes (1857, 1859, 1860), library bills (1795-1854). There are also more contemporary records on deposit (1952-1980s), relating to all aspects of the Company's activities (with restrictions on the use of some of this material).

This collection contains correspondence, research notes, papers and addresses, memoranda, drafts of letters and papers. These items center on Lingelbach's career at the University of Pennsylvania and at the American Philosophical Society. There is much correspondence with noted historians relating to various topics. His interest in political history and foreign policy, and his participation in national organizations can be seen in such files as the Foreign Policy Association, National Resources Planning Board, and the U.S. War Dept. Committee on Education and Special Training (World War I).

The Scaliger Family Papers, when taken together, trace the history of a noble family that was originally from Italy but lived primarily in Agen, France from the mid-1500s through the mid-1800s. Beginning with the patriarch, Julius Caesar Scaliger (1484-1558), a celebrated Italian scholar and physician, the members of the Scaliger family upheld an illustrious reputation over the centuries as scholars, military leaders, and noblemen. Throughout their family's history, the Scaligers maintained that they were descended from the Della Scallas, Princes of Verona. It is as a result of the necessity to defend this claim as well as later attempts to prove their ties to their noble heritage that this collection of documents has remained so well intact. The Scaliger Family Papers is a collection that encompasses several different kinds of documents that span from 1539 to 1862 including letters, genealogical material, works by members of the Scaliger family, as well as military, legal, and financial documents.