Hello Shawn

Here is some U. S. census data on these families:

1870 Shullsburg (Lafayette County), Wisconsin # 459: Robert Callow 32 miner England; Margaret 28 England; Mary E. 5 Wisconsin; Robert 2 Michigan; Margaret 5/12 Wisconsin.

1880 Idaho Springs (Clear Creek County) Colorado census # 210: Robert Callow 43 IOM stationary engineer; Margret 38 England; Mary E. 16 Wisconsin; Robert 15 Michigan; Margret A. 11 Wisconsin.

1900 Clear Creek County Precinct 13 # 15: Robert Callow June 1832 78 M40 yrs England immig 1860 40 yrs Na; Margaret Jan 1835 74 M 40 yrs 4ch-3lv England

1900 Clear Creek County Precint 13 # 16: Robert J. Callow Dec 1867 32 M10yrs Michigan gold miner; Evalina Feb 1871 29 M10 yrs 4ch 3lv Missouri; Marguerite Sept 1891 8 Colorado; Robert Dec 1874 5 Colorado; Gilbert Nov 1897 2 Colorado.

1910 Clear Creek County Idaho Springs 4 th ward census: Robert Callow 71 M1 47 yrs; Margaret 71 M1 47 yrs.

1860 Hazel Green (Grant County), Wisconsin census # 264 (all born IOM): Thomas Mulcrane 45 miner; Eleanor 55; Thomas 18 miner; Ann J. 16; Margaret 15; Josiah B. 10.

There is a Lafayette County, Wisconsin, marriage of Robert Callow to Margaret Smith, December 29, 1863.