- Index of RAYER in selected R.L. Polk city directories for Bay City: 1871-1913
- Index of RAYER in selected City Directories for Ann Arbor: 1888-1909
- Index of RAYER in selected City Directories for Ann Arbor: 1910-1919
- Index of RAYER in selected City Directories for Ann Arbor: 1920-1929
- Index of RAYER in selected City Directories for Ann Arbor: 1930-1939
- Index of RAYER in selected City Directories for Ann Arbor: 1940-1949
- Index of RAYER in selected City Directories for Ann Arbor: 1950-1959