1850 census had John Addis 35 NJ (1815) in Independence, Warren Co, NJ with wife Rebecca D. 33, son Samuel A. 13, and daughter Frances E.11.
1860 Hacketstown, Warren Co, NJ: S.S. Harvey 24 NJ merchant, wife Emma 22, dau Mary E. 3, son George L. 1, with Rebecca Addis 50 NJ, and other merchants and clerks.
1860 Son Samuel age 23, with wife Anna 19, and daughter Jestina 5 mos were living in Oxford Furnace, Warren Co, NJ.
1860 A John Addis age 46 NJ was living with no family in Nevada Gulch, Arapahoe, Kansas Territory.
1870 Oxford, Warren Co, NJ: William H. Alford (Axford) 65, Elizabeth 68, Sarah A. 56, and Rebecca D. Addis 54.
1879 - Rebecca Addis petitioned the estate of Sally (Sarah) Ann Axford, listing herself as 1/4 part, and also listing Abraham, Samuel, and children of one of her siblings? for the last 1/4 part, dated 2 Apr 1879 (sold to Rebecca). Property was resold in March 1881.
1880 Clancy, Jefferson Co, Montana: F.E. Harvey (Frances Emma) 40 NJ widow, with 3 sons and Mother Rebecca Addis 64 NJ.
I have not figured out who the parents of Rebecca Axford Addis and Abraham, Samuel, and William H. Axford, and Sarah A. Axford were- have you?