Thanks for your reply!
Despite you not knowing much, you managed to tell me things I did not know eg about the other 2 sons Marcus and William.
I am wondering if you know if they stayed in Ireland or came to the USA like their half-siblings (as you said your brother remembers meeting Maurice)..I thought that Ellen moved to the US as her name and place of residence (USA) in mentioned in my g grandfathers will..maybe she moved there later after Patrick died ???