 His sons, Harold C. Havens and Wickham Havens followed their father into real estate development in the East Bay area.Havens was an enthusiast for planting eucalyptus trees in the Bay Area.Between 1910 and 1914, his Mahogany Eucalyptus and Land Company had planted nearly three million Tasmanian blue gum eucalyptus and Monterey pine seedlings on 3,000 acres in the East Bay.