Willie /Kearns/ (Kerins) born in 1896 ?
Can Arthur Grimes be found?https://www.irishgenealogy.ie/files/civil/deaths_returns/deaths_1900/05764/4628732.pdfWhat do you mean by found? He was born before registration of births so there will be no birth certificate. He wasn't married so no marriage registration. He died before the 1901 census. You have his death registration.
. Also I beleive the surname Otterson is related to this family