Need any info on Robert Nelson Lockhart b.Nov1919 d.? married Elta ?.My brothers, Rodger N. b.1940, Frederick T. b.1943?, sister Patricia A. b.1945?, and I, b.1949Dec27 are his kids from a prior marriage to Rosie Lee Aeby b.1925, from 1939 to 1953. Our present father adopted us all. The first three kids were born in Bryan and I was born in Flint Michigan. Robert's brothers and sister are Herbert, Marvin d.1956, George, Kenneth d.1985?, and sister Clara. I know that all the boys have died and Clara was in Cleveland but now I have hit the brick wall. Robert worked in Flint from 1945 to 1953 and was no longer seen by any of us after the divorce. I need to know how he died and from what for genetic reasons.