Dear Ms. Douglas,
I picked up on this post and several others mentioning a family connection to the Dlugatch/Dlugach family name from Grodno.
Although it is a little hazy our Dlugatch/Dlugach ancestors also may have come from Grodno and emmigrated to Great Britain where the name was changed to Douglas and then Franks and then back to Douglas after WWII. The family was in the silver business in London and in the textile business in Northhampton. I would be happy to communicate further if you are interested. I have emailed my father (Michael Douglas - but not the actor) in South Africa to see if he has further information.
Ivor S. Douglas, MD