1920 census for Caroline Co, MD: FREEMAN, William H. age 38 b. MD, both parents b. MD wife Hannah age 26 b. MD, both parents b. MD dau Pearl age 4y2m b. MD dau Emily age 2y5m b. MD
In 1930 Hannah is remarried and living in District 6, Kent Co, DE: COOPE, Marvin B. age 50 b. DE, both parents b. MD wife Hannah age 36 b. MD, both parents b. MD stepdau FREEMAN, Anna P. age 15 b. MD stepdau FREEMNA, Emily age 12 b. MD
1910 - Chapel, Talbot Co, MD: FREEMAN, Alexandro age 63 b. MD, both parents b. MD wife Alice S. age 58 b. DE, father b. MD, mother b. DE son William H. age 27 b. MD dau Lillie M. age 18 b. MD RICH, Edward age 73 b. NY both parents b. NY
1900 - E.D 4, Chapel, Precinct 2, Talbot Co, MD: FREEMAN, Alexander b. Apr 1846 in MD, married 20 yrs, both parents b. MD wife Annie b. Dec 1850 in MD, 2 children born, 2 children living, both parents b. MD son William H. b. Aug 1881 in MD dau Lila b. Nov 1890 in MD
In 1880 there's an Alex FREEMAN, age 31, and wife Anna, age 27, in Easton, Talbot Co, MD.
I can't find Alexander in 1870.In 1860 I can only see the index and not the census image, but he appears to be the only person with the surname FREEMAN living in his household.
In 1850 there's a 1 yr old Aleck FREEMAN living in the Talbot Co. Poor House.Also in residence is a 3 yr old Catherine FREEMAN and 25 yr old Sally FREEMAN.