Just doing a bit of tidying up on some older threads, mainly for the benefit of anyone searching the site for information.
Can’t help on the others, but the first one is an original oil painting by Olga Sorensen
From the AskArt website:
Olga Sorensen was born December 1877 in Denmark and died February 1963. She is buried in Nanticoke Cemetery, Nanticoke, Pennsylvania.The following is from a Nanticoke, Pennsylvania newspaper, July 7, 1924."Former Nanticoke resident Miss Olga Sorenson, a widely known artist, was about to sail from Cherborg, France on the SS Reliance to visit her sister, Dr. Margaret Sorensen, and brother-in-law, Ove C. Schlanbusch, of Nanticoke. Departure was expected on 6 August and arrival in Nanticoke about 15 August. Miss Sorenson had an enviable reputation as an artist, with paintings in the Spring-Salon, Paris. She had also won special mention and favorable comments from French, English and American newspapers. In the summer of 1923 she had made an extensive tour of Brittany and Normandy, and had produced a number of landscapes and canvasses on the journey.