looking for my late sisters children

hello my name is edward ditmar jr iam the birth farther to jason jacquline and mary ditmar as birth name or alexander jasons birth is 10-24-1980 and marys d.o.b. 11-26-85 nancy 11-26-87 jimmy 10-30-1983 jackie 09-02-82 their birth mother d.o.b. is 01-02-65 her name is barbara ann alexander if you know any of theses persons please email me edward ditmar jr the birth dad d,o,b. 05-21-1961 my email address is jdnightowel01@aol,com or outlaw039@yahoo.com thank you