Hi Chris
These are the only Ann Skingle on the 1871 census
Database: 1871 England Census
Name Age in 1871 Birthplace Relationship Civil Parish County/Island
Ann Skingle 38 Bromley, Middlesex, England Wife Bromley St Leonard London
Ann Skingle 34 Welbury, Somerset, England Wife Kensington London
Of the 104 people with the surname Skingle in 1891, these are those with Ann / Annie as a forename - but non match up with your query
Database: 1891 England Census
Name Age in 1891 Birthplace Relationship to head-of-house Civil parish County
Skingle, Ann 58 SOME Wife Kensington London
Skingle, Ann 55 SOME Wife Kensington London
Skingle, Annie 37 Haulkam, Somerset Head St Mary Warwickshire
Skingle, Annie L 25 West Ham, Essex Head Burntwood Staffordshire
The top two are both married to a stephen.
Chris in 1066Land