Incoming Resources
- The Society, Altoona, Pa., c1983-
- Montessori Learning Center, Altoona, Pa., c1978
- Blair County Genealogical Society, Altoona, Pa., 1991-
- Montessori Learning Center, Altoona, Pa., c1975
- The Society, Altoona, Pa., c1983
- American Philatelic Association, Altoona, Pa., 1887-
- Blair County Genealogical Society, Altoona, Pa., c1985
- The Society, Altoona, Pa., c1984
- Montessori Learning Center, Altoona, Pa., c1980
- The Society, Altoona, Pa., c1986-
- A.H. Ledoux, Altoona, Pa., c1993