Sarah (Boosey) Lake has been shown never to have existed, although she appears in many internet trees. Details of the research are on her profile. She should probably be moved to the Disproven Existence Project. Can she be declared appropriately disproven and moved to the Disproven Existence project?
In this case, checking for the supposed records given in "sources" which don't exist. There is no record of a Sarah Boosey who married a John Lake and lived in the locations claimed. If she did exist and records are later found to prove it, she can be reinstated using those sources.
See the Disproven Existence Project, Disproven Existence, and the template page (with instructions).