Who was Anna Van Bloem of Staten Island?

Ruth Mills died in Paris on October 13, 1920 at age 65.  She was survived by her husband, her twin sister, three children, and several grandchildren.  When her will was read, bequests were made to her family as one would expect.*  She also included some of her servants.  She gave $2000 each to her butler, Frederick Thompson, as well as Eva Wilton, Mary Golding, and Maggie Sheridan.  Her will stated that they would receive the money on the condition that they were still in her service at the time of her death.  In one other bequest apart from her family and servants, Ruth stipulated an amount of $1,000 should go to Mrs. Anna Van Bloem of Staten Island.  She was not family and there were no conditions included like the bequest to the other servants.  So if she was was not currently in service to Ruth, who was Mrs. Anna Van Bloem?  I resolved to find out.