Biographical documents; correspondence; notebooks; artworks; scrapbooks; printed material; and photographs; ca. 600 items, total.

The papers of artist Isabella Howland measure 1.2 linear feet and date from 1899-1979. The collection documents her career through biographical material, correspondence, personal business records, writings, printed material, artwork, and photographs.

The Thomas Carr Howe papers measure 4.4 linear feet and date from 1932 to 1984. Howe was director of the California Palace of the Legion of Honor in San Francisco for nearly 40 years, and he served as one of the Monuments Men in the Monuments, Fine Art and Archives (MFAA) Section of the U.S. Army during World War II. The collection documents Howe's MFAA work in Germany and Austria locating and recovering cultural artifacts and artwork stolen by the Nazis. There is significant correspondence with friends and colleagues, as well as fellow Monuments Men such as Samson Lane Faison, Edith Standen, and George Stout. The papers also includes reports, inventories of stolen artwork, maps, annotated photographs, a scrapbook, and photographs. The papers also document Howe's later work at the California Palace of the Legion of Honor.

The papers of architectural historian, author, critic, teacher, and museum director, Henry-Russell Hitchcock, date from 1919-1987 and measure 24.8 linear feet. Almost all of the collection is comprised of Hitchcock's correspondence files relating to academic research, teaching, curatorial interests, and professional associations. Letters are from prominent architectural historians, architects, artists, preservationists, museum directors and curators, and family and friends. Also found are two feet of writings by Hitchcock and others, scattered biographical information, printed material, and photographs of Hitchcock and architecture.

Letters, 1766-1767, from Francis Hopkinson regarding his stay with Benjamin West; letters, 1817-1840, to Joseph Hopkinson from or regarding artists, among them Clevenger, C.R. Leslie, Thomas Sully, Benjamin Trott, and John Trumbull (2 letters regarding sales to the Pennsylvania Academy of the Fine Arts and the work of Benjamin West); letters from H...

The Winslow Homer collection measures 0.2 linear feet with material from 1863 and 1877 to 1945. The collection documents Homer's career as a painter and lithographer through letters, printed material, family records, and photographs.

The papers of Massachusetts portait painter and watercolorist Charles Hopkinson date from 1892 to 1993 and measure 1.4 linear feet. The papers are comprised primarily of 17 sketchbooks and loose sketches. Also found are printed materials and three photographs of Hopkinson, as well as writings about Hopkinson written by his daughter Joan Hopkinson Shurcliff and her husband William Shurcliff.

Also found at the Archives is a small miscellaneous manuscript collection of five letters to Chauncey Stillman from Charles Hopkinson.

The Peter Hopkins papers measure 2.4 linear feet and date from 1823-2001, with the bulk of the materials dating from 1935-1994. Writings, letters and diaries make up most of the collection. Printed materials relate to exhibitions of Hopkins' artwork and theatrical performances of his wife, Gertrude Beach Hopkins. There also are writings by both Hopkins and his wife that appeared in the Christian Science Monitor. Of particular interest is a group of vintage family photographs and family papers dating from the 19th century, as well as diaries Hopkins kept while traveling and working in a mental hospital in inland China in the mid 1930s.

The Carl Holty papers are dated circa 1860s-1972 (bulk 1940-1967), measure 1.8 linear feet and contain correspondence, writings, printed material and photographs documenting Holty's career as an abstract painter and painting teacher.

The papers of collectors Raymond and Margaret Horowitz measure 5.4 linear feet and date from 1903-2007, with the bulk of the material dating from 1960- 2007. The collection documents the Horowitzes' activities as collectors through art collection files, including appraisals, sales information, printed material, and photographs of artwork; files of artwork sold or donated; accession records, including inventory lists of paintings and prints; and catalog information.