There is a Fredrick SIDDLE found arriving at the Port of NY as a member of crew, 3rd Engineer and then later 2nd Engineer. He is on 2 ships from 1938 through 1957. The ships are the Gitano and Bassano both owned by Ellerman and Wilson LTD
Here is a link to info and photos of the shipshttp://www.benjidog.co.uk/allen/Lines/Ellermans%20Wilson%20L...
2 of he several ship manifests found are attached
Croatian Heritage Museum