1840 Census Horatio B HUBBARD in Darvin, Genesee, New York , 1 male under 5, 1 male 5-9, 1 male 30-39, 1 female 20-29; 1 in farming

Horatio B. HUBBARD remarried in RIchfield, Genesee, Michigan 10 June 1849; he had three children in 1850, Newton b 1834 in New York; Andrew D b. 1839 in New York; Lovina HUBBARD b. 1841 in New York

His death certificate lists 9 children; Lovina Content HUBBARD was born 2 April 1843 in Genesee NY; there should be 5 other HUBBARD children born in Genesee Co NY between 1840 and 1848, and the death of Mary HOLLENBECK HUBBARD around 1848.

I can find no clues to their time there. Can anyone help me? I have all the census records starting with 1830 In Bridgewater, Oneida, NY, but nothing about their time in Darien, Genesee, NY. Thank you