I am researching an Augustus Croft also.
I see that Augusta Croft in the 1890 Census for OR., was living in Linn County. It says in the Peoria Adams precinct. I believe that is between Albany and Corvallis, OR. The ID # OR1933827 says that this information was taken from OR 1890 Veterans Schedule.
In checking all the military information I found a Augustus Croft that served in the Civil War. The information for this person says that he served from Ohio and Enlistment date was 02/May/1864, Unit D, 155th Ohio Infantry, Rank was Private, Age was 20 yrs., Army was Union, Box#000552, Extraction#0023, Record#00002294. I am looking for children of this man. Thanks, Judi