Thomas Kelly and Elenora Kelly

Hi, i posted about Thomas Kelly their son a while back but i’ve recently learned more info about his parents who were Thomas and Elenora Kelly i’m not sure what her maiden name was but according to relatives Thomas died and she remarried either with that first name or surname Stewart/Stuart, only record i have is their sons marriage in Letterkenny Cathedral in august 1911, i know when i posted about him nobody was able to find any more records as he was a general dealer, i recently found out about some siblings Richard and Violet he had so im wondering if anyone could maybe find a record for them possibly as thats more info i had than before apparently his brother Richard went to a place called Inver in co donegal, are we maybe able to find a birth record for his siblings, i think his sisters went to england when they were older and his brother was the only one who stayed in ireland.