Hi KathyW,
The only Ann Searles born c1762 I could find was one born 1762 at White Notley. Her parents were John Searles and Ann Biggs (of White Notley) who married 12 Nov 1745 at White Notley. I'll list the children in case the names help to decide if Ann fits the bill.
John b1746 d1747.
John b1747 d1821.
William b1751 d1752.
William b1753 d1759.
Richard 1756 d1756.
Ruth b1758.
Hannah b1759.
Sarah b1761.
Ann b1762.
Isaac b1764.
The author of the info, Ken Searles, believes that John senior might possibly be the son of Giles Searles of Cressing but because the pre 1733 PRs for Cressing are lost Ken couldn't prove the link.
The dates as they are above are all I can give you, the author collected the info for his Searles book "From Bardfield to Brookend", after the book was published his research notes were destroyed, so in many cases all that remains are the year of the event.
I have nothing in my Searles tree to help you and nothing in my 'Spares" database either, sorry I can't be of more help but perhaps this Ann might be worth pursuing. Incidentally the author did not show a marriage for Ann, he may have missed it in the White Notley PRs but then again perhaps Ann didn't marry in White Notley.
Hope this is of some help.
Regards