Yes we have Lotchos in our Huguenot family tree - we have found several, but so far only Mary Ann Lotcho is definitely an ancestor. She married Josiah Simmons on 28 Jun 1807 at St Luke’s church, Finsbury and died in Bethnal Green around 1874. We have only recently started researching this side of the family, so it would be interesting to find out if you have discovered more – I notice your post is some time ago so you possibly have!
Eleanor Bowen (David Bowen's sister)