 Leon Haim Elmaleh (1873–1972) came to Mikveh Israel as religious leader in 1898 and served until 1929 when he became Reverend Emeritus until his death.Elmaleh was a founder of the Philadelphia Board of Rabbis and the Levantine Jews Society of Philadelphia.Pilcher and Tachau designed the fourth building which Mikveh Israel constructed in 1909 at Broad and York Streets.