I'm not sure when the hotel passed into the hands of the Gaylord Family, but I think it had to have happened shortly after William Jennings died in 1871. The hotel stood for around 40 years until it was destroyed by fire in 1910.
I assume this postcard -- dated 1906 -- show the Gaylord children. At this point, I'm not a subscriber to that ancestry website I have a love/hate relationship with -- so I can't add any names to the faces. However, from another source I find this information:
Jennie C. Gaylord b. Feb. 22, 1897 Mehoopany, Pa.
Helen Gaylord b. Sept. 9, 1903 Mehoopany, Pa.
Roy Gaylord b. Dec. 23, 1899 Mehoopany, Pa.
Jennie, Helen & Roy are the children of John W. & Grace (Custer) Gaylord.
Could they be the children on the postcard? Most likely. I also discovered a Jennings on the source page, a Catherine Jennings, but my genealogy chops are rusty so I'll have to get back to you on this. In any case, I'm thrilled to have a close up of the hotel in the latter days, and a peek inside the people that knew it.
