Re: Ambrose Pinkney House: NC 1840-1918
1850 Union County NC Census
John A. House 34 (actually this is John Jackson House)
Elmira House36 (Elmira Baker)
Ambrose P. House 10
Andrew M. House2
Mary M. House6 months
Elizabeth House51 John's mother
1860 Union County NC Census
John J. House40
Also living in the house was Louis Mastin 35.
1870 Union County NC Census
Monroe House 27
(John Jackson House & Ambrose Pinkney House's families are also here, but you were looking for Andrew Monroe.)
I do have Andrew Monroe House, b. Sept 1847, married to Mary C. McCall b. Jan 1846, their children a Bertha House 1883, Dean S. House 1885, Emsley M. House 1870.
Hope this helps.