On 23 august 1919 arrived in Rochester David A Guthrie ( Guthery) with his wife Alice and stepson James Foley
In Florida Tampa Naturalization records of 1943 you can read that their son David Albert Guthrie ( b0rn Peterbourough 1912) arrives at that same date by SS Ontario #2
but on the Manifest he and his younger sister Netia are not mentioned.
How is that possible?