Looking for any informatiom on a Robert James Sullivan railway worker who died betweenn 1830 and 1842, returned from America approx 1922 with family possibly had a brother Isaac.
There's something wrong with the dates in your message. I presume you mean that Robert was born between 1830 and 1842. Where was he born if he returned from America? If he was born in Ireland did he emigrate to America and work on the railways there?
I've just had a look at the Robert James Sullivan thread on the Ireland board which says he was born in August 1918 Brooklyn New York, returned to Ireland with his family approx 1922 father also Robert James Sullivan, possibly returned to County Down.
Robert may have worked on the Belfast and Co. Down Railway. The Public Record Office hold a number of BCDR records under the Ulster Transport Authority collection.
From www.familysearch.com Robert James Sullivan Birth: 16 JUN 1875 Limerick, Limerick, Ireland Parents: Father: George H. Sullivan Family Mother: Margaret Hunter