I don't think this is right place to look for people. I believe there is only 6 and a half thousand members registered here. Someone will notify you of a good site to try im sure...
There are over 300 people in Poland surnamed Cielemęcki, the largest concentration being in the eastern Mazowsze region in and around the town of Siedlce (195). Scattered clusters are encountered in the neighboring Biała Podlaska area (22) to the east of that, around the southern city of Katowice (21) and in Greater Warsaw and environs (15).
13 others spell their name Cielemecki without the squiggle under the "ę", of which 7 live in the Katowice area and 4 in and around the central city of £ódź.
I have tried to look on various phone listings etc but as they are in polish. . . it can be difficult. . .
If I was to place an advert in a polish newspaper or website Which would you recommend?
As time is a factor and we have low expectations but we hope confirm that Ewa's brother has died . . .he was sent to Berlin in 1941 to work in munitions with his uncle (against his will).