Horace W. Castor Architect 1101-8 Stephen Girard Building Philadelphia NOW AT 1801 ARCHITECTS BUILDING —17TH STREET AT SANSOM June 6 th , 1931. Mr. Harral Ayres, The Gunter Hotel, San Antonio, Texas. My dear Mr. Ayres It is most pleasing to receive from you the copies of the Travel Bulletin of the Old Spanish Trail. On Monday evening, June 8th, Mr. Albert Kelsey is to address the members of the Philadelphia Chapter of Architects on his impressions of the Convention and of San Antonio and its environments. I am going to take occasion to see that Mr. Kelsey refers to your kindness to me and of your thought in sending me the literature. When you are in Philadelphia again, won't you please call me on Bittenhouse 22-48, or stop in and see me at the Architects Building which is at Seventeenth and Sansom Streets Thanking you for your kindness and thoughtfulness, and assuring you of my delight in meeting with you, I am Sincerely yours, C