from the New York Passengers List
If you click on ENGLAND & WALES there are some counties in England that have Lattings.
If you click on ENGLAND & WALES in the case of the Lattin surname, they seem to be more abundant than Lattings.
Add the alternate spelling into the Other Names field of one of your profiles. This should do the trick, but it may not do it instantaneously. Some of the indexes that wikitree has are only updated once a week