Thomas McKee b. 1851 IA (Son of John McKee b. 1820 Ireland and Margaret Holmes b. 1834 PA) married Anna M. Gormly abt. 1876 in IA. They had the following children.
1. Minnie May b. 1878 d. 1890 2. Frank R. b. 1878 d. 1961 3. Dean W. b. 1883 d. ? 4. James Wilbert b. 1883 d. 1974 5. John Lewis b. 1894 d. 1972
I am going to have to do a little more digging to correct Dean and James b-days which are only a month apart.
You have Minnie and Frank right. (Or the same as me anyway) Your Gilbert is probably James Wilbert. Your William D. Could be Dean William? Mary could be Mother Anna's middle name? Robert could be Frank's middle name? As far as: William S., William, Luther, and Calvin, I haven't a clue. Looks like I'll have to do a little more research here too.
I would be interested to find Anna M. Gormly's Parents.