David Nelson Parker was an African-American farmer in Pleasant Grove. He was the son of two slaves, Jeremiah Parker and Rachel Parker, who bought their freedom and then bought land to start a farm. David Nelson Parker appears to have served in the 28th Regiment U. S. Colored Infantry for a period of time after the Civil War (see 1910 census) before coming to live with his parents on their farm in Pleasant Grove in 1870. He later bought the farm from his father and eventually sold it to the Van Dykes. He purchased a house and lot in Pleasant Grove and lived there until he died in 1915. There was a nice article about David Nelson Parker in the Sutter County Farmer when he died. He left his estate mostly to a brother in Sacramento (see Sutter County records Book 58 page 101).
Census, Sutter County Real Property Records, and newspaper articles document the Parkers of Pleasant Grove.