When Andrew attested for his WWI service in 1916, he was living in Bells Corner, Ontario and his brother Peter was his next of kin living in Cobden, Ontario. These are both in eastern Ontario.
Andrew Watson Symington crossed into the US in 1921 bound for his uncle Peter Symington in Minnesota. He had been living in Hamilton, Ontario and his next of kin at home is his brother Peter also living in Hamilton.
His WWI service record also names his sister Miss Sarah Symington, 13 Park Avenue, Dundee, Scotland as his new next of kin.