BOOKS BY JACK ALEXANDER Steam Power on California Roads and Farms, 1998 (out of print) The First American Farm Tractors, 2003 The Caterpillar's Roots, 2005 The California Combined Harvester, 2010 The Regan Vapor Engine, 2015 Briefly Famous, The 1917 Caterpillar G-9 Tank, 2015 “California’s Thirst For Tractors” in 2016, “The Holt Caterpillar Harvester” in 2017, Be-Ge Earthmovers, in 2020. The Holt Brothers, in 2022. ARTICLES BY JACK ALEXANDER Thomson Road Steamer: Steam Traction Magazine Winter 2007, Spring 2008 Tractor History Now Complete, California Farmer, March 2008 The First Experimental Gas Caterpillar Tractors, ACMOC, May/June 2008 High Country Harvest, Farm Collector Magazine, May 2011 San Francisco's First Steam Shovel, HCEA, Winter 2011