Date of Birth: 
About Joe Maier
- Father Joseph (Joe) H.
- Maier, C.Ss.
- R., (born 31 October 1939) is an American Redemptorist priest who lives and works in the Khlong Toei slums of Bangkok, Thailand, where he co-founded the Human Development Foundation (HDF-Mercy Centre) with Sister Maria Chantavarodom in 1973.
- For over 45 years, he has administered to Bangkok's poorest, providing vulnerable children and families alternatives to and a haven away from drugs, violence, sexual abuse, and prostitution in the squatter slums.
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