Marginal notes on North American Indians in Champlain's "Voyages de la Nouvelle France..." Includes one page of remarks on Canadian Indians, and a one-page list of words of Montagnais language.

These forty-five letters concern legal and political matters, Indian languages and linguistics, philological matters, and the American Philosophical Society.

Copies of 82 vocabularies representing 73 languages with notes and additions made by Du Ponceau and Albert Gallatin. Vocabularies for South American languages are copied from rare printed sources, while North American vocabularies are from both printed and manuscript sources. The first 23 pages of the volume are the Continuance Docket of the Court of Common Pleas, Philadelphia County, 1783-1786. Cases noted are those involving Stephen Dutilh, Samuel Garrigues, John Girard, John Holker, Charles J. de Longchamps, and Claude P. Raguet.

After emigrating from Germany to Philadelphia in 1796, Peter Adolph Grotjahn established himself within the city's mercantile community, trading opportunistically both inland and coastwise as far as the Caribbean. In 1812, he began publishing a commercial newspaper, Grotjan's Philadelphia Public Sale Reports and he became increasingly active in local Democratic Party politics. The APS copy of Peter Grotjahn's memoir is a typescript copy of an original volume held at the Historical Society of Pennsylvania. Written for his grandchildren, the memoir begins with a relatively brief genealogical discussion, but concentrates on his personal and political life and commercial experiences prior to 1817. The last section of the autobiography was completed posthumously from notes, and includes extracts from Grotjahn's diary as late as 1844.

The papers include miscellaneous letters, letterbooks, books, certificates, and diplomas of various members of the Muhlenberg family. Among them are photostats of letters and papers of General John Peter Gabriel Muhlenberg and officers of the Continental Army on military affairs in the Southern Department during the American Revolution (1772-1804); photostats of letters to Albert Gallatin, Nathanael Greene, Edward Hand, Winthrop Sargent, Baron von Steuben, William Alexander, and George Washington; photostat of General Muhlenberg's journal of trips to the Ohio (1784, 1797); photostats of letters and notes of Gotthilf H. E. Muhlenberg, including a diary kept at Halle (1771) and extracts of thirty letters to Stephen Elliott of Beaufort and Charleston, South Carolina (1808-1815); photostats of letters of Henry A. Muhlenberg about his biography of General Muhlenberg (1848-1849); and photostats of letters of Henry Melchior Muhlenberg (1711-1787). Also included is an original letterbook of Peter Muhlenberg, paymaster of the United States Army, kept at Augusta and Savannah, Georgia (1836-1842). Henry Muhlenberg's notebooks (1784-1813), written in Latin or German script, in a small hand, includes a wealth of botanical observations, with a focus on Lancaster, Pennsylvania. The Henry Muhlenberg journals are a record of daily occurrences, with many features of a commonplace book, containing prescriptions, notes of questions asked candidates for the Lutheran ministry, and the plan of a barn. There is also a biographical account of Rev. Henry Melchior Muhlenberg (1711-1787).

In addition to family and business correspondence, the Charles Nicoll Bancker Family Papers contains various documents, such as a furniture inventory volume (30pp.); a Daybook, 1795-1800 (120pp.); and a very interesting journal (unidentified, but by one of the Banckers, and filed under "Description of a trip..."), from New York to Albany and back, between July 20-Aug. 15, 1793 (1 vol., 31 pp.). It contains detailed observations of the Hudson River and the towns along the way. Bancker was involved in business and trade prior to 1826, and in insurance after that date, so there is material relating to those topics in this collection. He owned a substantial library of the period, which was used by Charles Wilkes's Expedition after 1837 (see Reynell Coates to Bancker). This library, along with Bancker's notable scientific instrument collection, was sold after his death and there are published auction catalogues in the collection. There is much family correspondence from: Anne E. Bancker, Charles Gerard Bancker, Evert Bancker, Sarah U. Bancker, Violetta Bancker Talbot, Elizabeth Bancker Teackle, and John Teackle.