I have a Callicott connection that seems to be connected somehow. I have a Mary Ann Callicott age 21 in 1870 census
who married Benjamin Garrett Hill May 31 1867 in Gallatin County. I find them in the 1870 Gallatin County Census Township 8 Range 9 right next to your W. C. Callicott Family. Mary A. Callicott is in the 1860 Census same location as 12 year old daughter of Samuel and Mary Callicott. They are next to a Harrelson Family and the Washington Callicott Family. I can't find Benjamin Garrett & Mary A. Hill in any other census. Any info would help, thank you.