Askart posts a biographical note in its site from Charles Gurney, who, as a boy, had the opportunity to know the artist during 1935 - 36. He reports that during de Ribcowsky's last years, he resided at the at either the Ambassador or the Beverly Wilshire Hotel. He further states de Ribcowsky's paintings were on display throughout the hotel and were for sale. He was in a wheelchair at this time, but still got around with the help of a chauffeur who would lift him into a large sedan, and he was accompanied by a young lady nurse.
Charles Gurney ends his note by saying "That I can remember this much from the years I was 9 and 10 years old, tells what a really forceful personality he was. He was, truly, unforgettable. Behind the sometimes curmudgeonly manner, he was quite a humorist and definitely a powerful presence. His paintings please, and they last."
Source: Askart