It appears that Alexander Bostick (1846 - 1924) was actually named Brownlee Alexander Bostick.Perhaps he changed his name upon joining the service (at a slightly adjusted age...:)
In the 1850 and 1860 census records, Brownlee (born about the right time, etc.) is at home with his parents Thomas Bostick and Margaret Parker, and with a bunch of siblings (sorry, have the list at home, am writing from work) including Mahala & Agnes (this is significant later).Then Brownlee vanishes, and Alexander appears starting in the 1870 census, married to his first wife, with children whose names make sense with family recollections, other records, etc.He continues through all the census records we can find, with the appropriate children & wives at various times, including our bunch (Sam, Dess, Ruby & Hale, who was named after his sisters - Mahala Agnes).
So now we're working back from Thomas & Margaret, and trying to tighten up the connections in the middle there.
* * * * Researching Morris, Tanner, Flint, Bostick, Hull, von Bodenstedt, Hoag, Young