I do have to apologize for my previous note. I just realized when you wrote Edward you were actually puting (my) Edward and the rest of the Male names.
I was talking to my sister-in-law in Jordan (Ed's sister)who has in her posession a family tree that includes others that i do not have, some of which are intermarried with dahdahs and live in San Francisco - Nouha is one she married Yousef Dahdah son of George Dahdah who for a short while lived also in San francisco. The names of brothers and sisters you gave of Tawfiq are right, two of which died very young.
I also found out that the whole Dahdah clan started in Russia way back. do you have such info. I will have mine evantually from my in-law sometime in December when she comes to visit, she said there's alot of paperwork involved and cannot send it through email or actual mail.
So we will keep intouch and see what else might come up.