Hi Kathy, I've found some SLATERs in 1841 but only in Chilton. The ages in the 1841 census were usually rounded to the nearest 5, hence the William that is listed at 15 may have been 18 (as yours would have been). I'm not sure if they rounded the ages up or down or whether it depended on the individual enumberator. Also, there may be more SLATERs listed but due to the very poor quality (handwritten and extremely feint in places) it might not be possible to read certain pages. Anyway, here is all I've found: Reference HO 107/38/9 Name Sex Age Occupation Born in County Y or N Page 6 John SLATER M 30 Ag.Lab. Y Martha SLATER F 30 Y Jane SLATER F 5 Y Jonathon SLATER M 2 Y Page 8 William SLATER M 80 Ag.Lab N Ann SLATER F 65 N Elizabeth KEEN F 30 Y William KEEN M 3 N George KEEN M 1 N Page 10 Jonathon SLATER M 45 Ag. Lab. Y Ann SLATER F 45 Y William SLATER M 15 Y Thomas SLATER M 13 Y John PLESTED M 25 Ag. Lab Y Ester PLESTED F 25 Y William PLESTED M 8months Y Sarah SLATER F 20 Y hope it helps Eileen