Member of the prominent Vanderbilt family (1875–1942) who was a sculptor, art patron, and founder of the Whitney Museum of American Art in New York. Two TLSs, one signed “Gertrude V.” and one signed “Gertrude,” each one page, 7.25 x 10.5, Hotel Delmonico letterhead, 1947 and 1949. Letters to Eddie Mannix regarding the Ziegfeld Club. One letter, in part: “Do wish you could be in New York when the Dance is being held it is quite a sight, this would make a great picture to add to your Ziegfeld Pictures.” In the other she asks if he is interested in advertising in the Ziegfeld souvenir program. In fine condition, with paperclip impressions and a few light creases to both letters, and a pencil notation to the bottom of one. RRAuction COA.