Obituary of Arthur J. Brennan Jr. He was born July 11, 1934 in Rochester, a son of Arthur J. Brennan Sr. and Jean (Schnitzler) Brennan. He had lived in the Brockport area for most of his life. A local builder and developer, Mr. Brennan had served on the Board of Directors of Lakeside Memorial Hospital and had also served on the Clarkson Town Planning Board.