3 Oil paintings of artists unknown?

I have three oil paintings of unknown artists, unknown to me at least, of which I'm hoping someone could help with. One of the names is G. Whitman, however the sig on the painting is much different than what I've seen from paintings on google images. Here are links to them.

Painting 1: http://a-frayed-knot.deviantart.com/gallery/#/d5s03c1

Sig. 1: http://a-frayed-knot.deviantart.com/gallery/#/d5s03e9

Painting 2: http://a-frayed-knot.deviantart.com/gallery/#/d5s037c

Sig. 2: http://a-frayed-knot.deviantart.com/gallery/#/d5s0330

Painting 3: http://a-frayed-knot.deviantart.com/gallery/#/d5s01nf

Sig. 3: http://a-frayed-knot.deviantart.com/gallery/#/d5s02wq

Any help is appreciated in identifying these paintings and artists. Thank you for your time and help.