James G. Pickett, born in New York state in 1846, moved to Pickett, Wisconsin (named for his family) in 1846 and remained there until his death in 1907. Pickett was a charter member of the Wisconsin Archeological Society. His collection was purchased for the museum in 1905 with funds provided by Mrs. Leander Choate.

Stephen D. Mitchell, born in Iowa in 1844, moved to Wisconsin with his family in 1846. He settled in Green Lake County in 1867 on a farm which became known as Mitchel's Glen. He died there in 1926. He was a member of the Wisconsin Archeological Society. His collection was purchased for the museum in 1928 with funds provided by the "City of Oshkosh and friends".

Charles Koehn, born in Milwaukee in 1881, moved to Oshkosh in 1902. He was a founding member of the Winnebago Archeological and Historical Society. He died in 1948. His collection includes items from the collection of Ernest Benedict, Butte des Morts, WI. Part of the Koehn collection has been on loan to the museum since 1929.

Frank Mueller, born in Germany in 1867, immigrated to Princeton, WI in 1878. He died in 1948. His collection of Native American artifacts was donated to the museum by his four children in 1965.

The Carl Wittman collection was purchased for the museum by the Winnebago County Board in 1941. Carl Wittman was the son of Dr. A. R. Wittman, both of Merrill, WI. Dr. Wittman, who died in 1939, owned an extensive collection of Native American artifacts. No other information was found on either Wittman.

Fred McKay was born circa 1883 in Wisconsin, possibly Oshkosh. He lived in Oshkosh during the 1920s. No other information is known about him.

Arthur P. Kannenberg was born in Milwaukee, WI in 1887. He was an avocational archaeologist who began his long association with the Oshkosh Public Museum as volunteer curator of archaeology; he served as museum board president from 1928 until 1933; and he was hired by the museum as the curator of archaeology in 1935. He was a founding member of the Winnebago Archeological and Historical Society. At his death in 1945, he was the museum's assistant director as well as curator and president of the Wisconsin Archeological Society. At the time of his death, his dispersed personal collection remained at a number of institutions as well as his home. In 1959, his wife, Lenora, donated all of his collection at the Oshkosh Public Museum to the museum.