Mr. Jack became a driving force in land development, ranching, banking and politics in San Luis Obispo County. He was the treasurer of the West Coast Land Company during the 80’s when construction of the Southern Pacific Railroad line through San Luis Obispo was anticipated. In his house he entertained numerous well known guests including, railroad magnates Charles Crocker and C.P. Huntington, pianist Ignace Paderewski and humorist Will Rogers. He was also the President of the City Trustees, the governing body of San Luis Obispo before the turn-of-the-century. Driving along highway 46 one can still see signs of the Jack Ranch in Cholame where Robert Edgar began his legacy in California. Now part of the Hearst Ranch the Circle C, registered brand number 0002, is the oldest brand still in use in California.