The mortality experience of the AFL-CIO United Brotherhood of Carpenters and Joiners of America members was examined to determine current mortality patterns in a large wood-exposed population and a possible wood-cancer relationship. The data consisted of union members' mortality data (death claims and non-claim deaths) from 1971-1973 along with data from a published report of 1969-1970 member deaths. Expected and observed death rates were calculated and the mortality was expressed as standard mortality ratios (SMR). The overall mortality of union members is favorable. Among younger workers, elevated rates were found of job-related accidental deaths due to falls, falling objects, and electrocution. The findings regarding cancer mortality rates in the various union trades show the following patterns: elevated rates of lung cancer in acoustical tile applicators and insulators, probably related to asbestos exposure; elevation of gastrointestinal cancer rates among pile drivers; excess of lung, stomach and bladder cancer among locals in some urban areas; excess of lung cancer among union locals in the southeastern states; and excess hematopoetic cancers among wood-machining trades and plywood mill workers. (This report includes tables and figures which provide detailed mortality data for ninety-five causes-of-death groupings by trade, union locals, and geographic area.) (EM)