In the 1880 US Census for District 68, Marcellus, Cass County, Michigan the family of Asa Sheldon was enumerated as follows:
Dwelling #31; Family #32
Sheldon, Asa; W; M; 41; Married; Farmer; b. Ohio; Both parents b. New York
Sheldon, Henrietta, W; F; 31; Wife; Married; Keeping house; b. New York; Both parents b. New York
Sheldon, Emmons; W; M; 12; Son; Single; Going to school; Attended school within the census year; b. Michigan; Father b. Ohio; Mother b. New York
Sheldon, Alta; W; F; 8; Daughter; Single; Going to school; Attended school within the census year; b. Michigan; Father b. Ohio; Mother b. New York
Sheldon, Blanch; W; F; 7; Daughter; Single; Going to school; Attended school within the census year; b. Michigan; Father b. Ohio; Mother b. New York
Sheldon, Etta; W; F; 6; Daughter; Single; Going to school; Attended school within the census year; b. Michigan; Father b. Ohio; Mother b. New York
Sheldon, Alpha; W; M; 2; Son; b. Michigan; Father b. Ohio; Mother b. New York