Contains correspondence of Isaac Russell, Jr. and his family members, dated 1844 to 1918.

Contains mainly correspondence between Samuel Russell, Jr. and his employer, Senator William H. King, including telegrams. Materials dated 1903 to 1930.

Oil painting portrait of Samuel Russell. Plate on frame reads, "Samuel Russell: April 14, 1879- August 4, 1954." Author's name is illegible.

Contains pamphlets on weights and measures, chemical engineering, agriculture, and other topics, including some written by Samuel Russell, Jr. Materials undated, but probably created between 1822 and 1954.

Contains bills and resolutions, articles by Samuel Russell, Jr. on politics, taxes and trade, and other topics, National Bureau of Standards reports and documents on weights and measures, Supreme Court briefs, fiscal relations within the United States, records on the Mayfield case. Most materials dated 1902 to 1930; others probably created between 1904 and 1954.

Contains Russell family histories and biographies, diaries, speeches, blessings, daybooks, and other family items. Dated 1869 to 1954.

Contains personal memorabilia of Samuel Russell, Jr. and Sr., and Isaac Russell, Jr., such as school items, important life date notes, Church items such as temple dedication passes, copies of articles, club items, passports, childhood items, etc. Materials mainly undated (one item dated 1893), but would have been created between 1835 and 1954 (when Samuel Sr. was born, and when Samuel Jr. died).

Contains letters of Samuel Russell, Sr. to and from members of his family (wives, sisters), government and Church leaders (including Wilford Woodruff, Lorenzo Snow, B.H. Roberts, Reed Smoot, etc.), and others; as well as notes from General Conference, etc. Materials dated 1852 to 1917.