Arnold Martin Katz, 83, died Jan. 25. He was the husband of Phyllis Katz. Born in Chicago, Ill., he was the son of the late Aline and Louis Katz. In addition to his wife, he is survived by his children, Paul Katz and his wife Shufen Liu of Taipei, Taiwan, Sarah Fostello and her husband James Fostello of East Bridgewater, Mass., Amy Schick of London, England, and Laura Katz and her husband Dan Berger of Northampton, Mass.; and his grandchildren, Emily and Philip Katz, James and Caroline Fostello, Annabel and Michael Schick, and Rose and Alex Katz-Berger.