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 includes letters, diaries, notebooks, and early photographs, relating primarily to the Wister family of Germantown and Philadelphia. Much of the correspondence concerns domestic news and consists of letters from or to Sarah Wister. These include interesting observations on Germantown and Philadelphia society from other families as well, such as the Bayntons and Bullocks. There are numerous letters from various Wisters, including Casper, Charles Jones, Elizabeth (including a journal of a trip to Bristol, 1783), Hannah, John, Owen Jones, and others. There is also poetry by Sarah.

One of the oldest houses in Philadelphia, Wyck is now a non-profit museum listed on the National Register of Historic Places. Nine generations of the Jansen-Wistar-Haines family owned the Wyck property from 1690 until 1973. The last family owner deeded 2.5 acres of land, the house and its contents, several outbuildings, a landscaped garden, and a small endowment to the Wyck Charitable Trust. The Wyck Charitable Trust and the Wyck Association now administer the preservation of the property and its educational services to the public. This collection contains diaries, letters, accounts, bills and receipts, deeds, and photographs. The collection as a whole is deepest for the period 1770-1970. Items of particular note include accounts of household expenses at Wyck from ca. 1790-1970; papers pertaining to the Academy of Natural Sciences of Philadelphia, Quaker schools, and social reform groups; agricultural and horticultural practices; and correspondence to and from cultural leaders of 18th and 19th century Philadelphia. The papers of the John S. Haines family (Ms. Coll. 52A) form part of the Wyck Papers. The papers cover the years 1845 to 1949 and are arranged into eight series.