Hi Loanne, Something is not quite right here or it's me.I didn't find August and Nellie in Hibbing, MN in 1910.
I did find them living in Maxwell, Colusa, CA in 1920. August Nelson, b. Sweden, abt. 1869, immigrated 1902, naturalized 1910, laborer warehouse. Nellie, wife, b. Sweden, abt. 1866, immigrated 1886, naturalized before 1920 Census.
In 1910 they were living in Maxwell. August Nelson, b. Sweden, 41, marr 16 yrs, laborer warehouse. Nellie, wife, b. Sweden, 44.
Either Nellie died between 1920 and 1930 if they divorced. In 1930 August is living in Williams, Colusa, CA. August Nelson, head household, widower, b. Sweden, 61, nat, lab warehouse.
Let me know if I've missed something and I'll look again.