In the 1880 US Census for District 147, Norwalk, Fairfield County, Connecticut the family of Charles F. Barnum was enumerated as follows:
Dwelling #70; Family #88
Barnum, Charles F.; W; M; 32; Married; Works in hat shop; b. Connecticut; Both parents b. Connecticut
Barnum, Emma J.; W; F; 31; Married; Keeping house; b. Connecticut; Both parents b. Connecticut
Barnum, Bertha B.; W; F; 5; Daughter; Single; At home; b. Connecticut; Both parents b. Connecticut
Barnum, Frederick C.; W; M; 3; Son; Single; At home; b. Connecticut; Both parents b. Connecticut
Barnum, Eva J.; W; F; 1; Daughter; Single; At home; b. Connecticut; Both parents b. Connecticut
His cause of death was listed as Rheumatism of the Heart, certified by Alvin E. Barber, MD.