A Record from Mary's Database
NOT an ex-FBI agent, but was allegedly in partnership with Guy Banister. Oster left Banister and went to work for ex-FBI agent A. Harry Roberts, with Southern Research Company. Oster and Roberts investigated David Ferrie on behalf of Eastern Airlines in 1962. (See 10/16/67 memo in Jim Garrison's file from Rothermel). HSCA Vol X, p. 128, says Oster was one-time partner of Guy Banister who set up his own private detective agency, Southern Research Company, in 1958.