You can send her a PM (personal message). If you go to one of her posts, click on the little green scroll under her user name on left side of post, write your message in the box that appears (add subject heading if you wish) and click 'send'. No one but the two of you will see the pm so you can send your email address, details of recent relatives, etc. safely.
There's someone on Rotschat looking for Tilcocks (think the spelling only has on l in it) also. If you go down to the bottom of the page and click link to surname interests table (SIT) you can search for the name and find out who it is.