WTD UK artist information

[Hamish Duguid]

I would appreciate any information or possible sources of info.that you
can provide on the following

Greta Collyns - Scottish w/c landscape artist
B Thompson - w/c winter painting of Ben Lui
Max Pennan or Penman - w/c The Harbour Fowey
W Dowden - oil on board - old sailing ships like Cutty Sark
M Allan - w/c A riverside thatch cottage with 2 edwardian children
F W Sinclair-Thomson - w/c A Cumberland landscape dated 1957
J S Andrew - w/c landscape dated 1972
J G Mathieson - w/c Scottish landscape
J F Gunn - w/c A Dundee whaler homeward bound dated 1941
Jas Gibb - w/c Scottish landscape artist
Lily? Schroy? - engraving
Lucy A Smith - Guache of A misty shore dated 1978
Alan or Alex Fraser - engraving of The Quay, Chaples?
I W Williamson -w/c of sailing boats dated 1833
Charles Napier -w/c of dancing nymphs in a glade
M Natthi? - w/c landscape dated '78
M.W./11. - w/c of a bridge over a river

Thank you for any help you can give