Happy Jack is an unincorporated community in Plaquemines Parish, Louisiana, United States.
[1] A post office called Happy Jack was established in 1874, and remained in operation until 1958.
[2] The community has the nickname of an early settler who was noted for his cheerful nature.
[3] Variant names were "Point Michael" and "Ronquillo Settlement".
This Louisiana state location article is a stub.