Francis O'brien- Carrick on Suir

[Dmartin]

Hi ,
Trying to research my G/Father  Francis O'brien b 1904 Carrick on Suir (pill Rd )

 B/C states   Fathers name Francis O'brien (Royal irish constabulary)
                    Mothers Name Marcella Eago
 
 In 1901 Francis and Marcella Living at Knocknaconnerry,Carrick on suir.

 In 1911 at Mill Street,Carrick on suir.

 In 1923 my G/F  Francis O'brien Emigrated to Philadelphia

 1930  Us census living at Wahington Ln ,Cheltenham,Montgomery County,PA
 
 In 1933/34 he came on a visit to London with his brother James(jim), James returned to the USA but my G/Father remained in UK,He married my G/Mother Nellie Cook in Fulham c1934/35.
 
 
 Unsure of my G/Fathers siblings - could be  James,Jas,Cissy,Beatrice. His sisters possible lived north london areas.

 Any information will be greatly appreciated.