1850 census of Fleming Co., Ky, division 2, enumerated 14 Aug, lists on p. 9 as family #56:
Spencer Robins, 68, farmer, b. Delaware; Mary Robins, 59, b. Delaware; Aaron Donathan, 26, farmer, b. Ky; Martha Donathan, 21, b. Ky; Jackson Caldwell, 23, laborer, b. Ky; Nancy Jane Donathan, 3, b. Ky; Emily Donathan, 1, b. Ky.

I know of no relationship between the Robins/Robbins family and the Donathan or Staton families. Aaron was probably a hired live-in farm hand.

I cannot find this family in the 1860 census.

1870 census of Bath Co., Ky, Mudlick precinct, enumerated 24 Aug, lists on p. 40 as family #289/291:
Donathan, Aaron, 48, farm hand; Martha, 41; Lucy, 14; Harrison, 11; James, 7; Noah, 4; Caliph, 1. All born in Kentucky.

1880 census of Menifee Co., Ky, Beaver precinct, enumerated 22 June, lists on p. 26 as family #142:
Donithan, Marthy, 51, widowed, keeping house; Harison, 21, works on farm; James, 17, works on farm; Aron, 13; Calip, 11. All born Ky Ky Ky.