The Heffron family lived in the house through the 1890s while Isaac's career continued to advance and his wealth increased. In 1899, he commissioned architect Charles W. Bulger to design a new house for the family at 511 17th Street.Beasley, Ellen and Stephen Fox. Galveston Architecture Guidebook. Houston: Rice University Press and Galveston: Galveston Historical Foundation, 1996, p.74. The family relocated in 1901. Heffron died in his office in 1928.“Heffron Services to be Held Today,” August 10, 1928.
