Chief Engineer Alexander MacKinnon

Alexander MacKinnon, apprentice Engineer at John Browns Clydebank, later to be Chief Engineer on the PIONEER, circa 1930's. The first picture is of him working aboard the RMS Lusitania on the Engines.
He can been seen bottom right holding a spanner.

He can also be seen here maybe late 1930's "my Grandfather was the Chief Engineer, front row left."