The National Museums of Scotland hold a model of this barge – click here.
In 1901, Thelma was Thames Champion at the Thames Barge Regatta.
Built: 1901
Yard: Sittingbourne
Rig: Spritsail 50t
Results:
1901: 1st in 35th Thames Match, 1st in 22nd Medway Match
1902: 2nd in 36th Thames Match
Registered to J. E. Castle (see Queenborough Cement Co.)

Topmast flag for barges owned by Castle