« Reply #24 on: Thursday 19 November 15 22:26 GMT (UK) »
Could be some people type into FamilySearch their ancestors name "John Bloggs" born England 1815-1820 and see results for the right man but also see an 1880 US census for a John Bloggs in the USA born England 1816 and think it is him (
so then look him up on Ancestry USA and attach the entry as a source) as he hopped along to America then returned to the UK by 1881, totally forgetting to look at the rest of the 1880 household and that man was married to a different spouse and his eldest child was 18 and youngest was 2 and all born USA.
They often just go on someone of the same name, similar age and birth country, which is not enough to assume it is the same person, unless their name was Cornelius Aloysius Nicholas Bracegirdle

.
One ancestor sibling was Emma Finch and there was an Emma Finch in America in 1880 born England, similar age to my Emma. One other tree has my Emma in 1871 and 1881 in Northumberland, England and also the Emma Finch in 1880 in the US as the same person when that is impossible if you look at the rest of the households.
Researching:
LONDON, Coombs, Roberts, Auber, Helsdon, Fradine, Morin, Goodacre
DORSET Coombs, Munday
NORFOLK Helsdon, Riches, Harbord, Budery
KENT Roberts, Goodacre
SUSSEX Walder, Boniface, Dinnage, Standen, Lee, Botten, Wickham, Jupp
SUFFOLK Titshall, Frost, Fairweather, Mayhew, Archer, Eade, Scarfe
DURHAM Stewart, Musgrave, Wilson, Forster
SCOTLAND Stewart in Selkirk
USA Musgrave, Saix
ESSEX Cornwell, Stock, Quilter, Lawrence, Whale, Clift
OXON Edgington, Smith, Inkpen, Snell, Batten, Brain