1850 Census - Fayette County, Pennsylvania
Union TWP - 31 July 1850

  152 156
  Robert Cunningham  30 M Laborer Penn
  Hannah             26 F         Penn
  Mary                1 F         Penn

1860 Census - Fayette County, Pennsylvania
North Union TWP - 23 June 1860

  482 482
  Robt Cunningham   35 M D. Lab.  300 Penn
  Hannah            26 F              Penn
  Mary C.           11 F              Penn
  Martha E.          9 F              Penn
  Geo.               8 M              Penn
  Abram              5 M              Penn
  Robert             2 M              Penn

1870 Census - Fayette County, Pennsylvania
North Union TWP - 11 Aug 1870

  144 139
  Cunningham, Robert  47 M W Farmer 1000   Penn
  Martha              19 F W Keeping House Penn
  George              17 M W Works on Farm Penn
  Abram               15 M W Works on Farm Penn
  Robert              13 M W At home       Penn
  William              7 M W               Penn

1880 Census - Fayette County, Pennsylvania
Menallen TWP - 8 June 1880

  70 75
  Cunningham, Robert   W M 56      Farmer               Penn Penn Penn
  Martha J.            W F 38 Wife Keeping House        Penn Penn Penn
  Robert               W M 21 Son  Farmer Laborer       Penn Penn Penn
  William              W M 16 Son  Works in Brick Yard  Penn Penn Penn
  Abraham              W M 22 Son  Ore Digger           Penn Penn Penn
  John                 W M  7 Son                       Penn Penn Penn
  Ewing                W M  5 Son                       Penn Penn Penn