Married Edna VanArnum born in Troy, the daughter of Clarence VanArnum and Elizabeth Agard according to one Morrison researcher.
1940 census for Troy Robert b 1905 and Edna have a daughter Barbara b 1931
Robert Amos Morrison Jr has a WW one draft registration card; did you consult that for information?
Robert Amos Morrison Sr seems to be the son of John Morrison and Elizabeth/Eliza Bloomingdale; Elizabeth is the daughter of Amos Bloomingdale of whom they have him living with them.
Don't have an awful lot of difficulty following this line; however the below is proving more difficult.
After "fiddling around" with this for about an hour and "consulting" the 1930 census, Lovina/Lavina states she was born in NJ and Robert is born as late as 1882 or as early as 1876 depending which census one consults.
perhaps if you had a might more information to help out.