 During winter of this same year, he gave up the management of the Denver store, preferring to take on a store in California Gulch as his own, where he stayed until 1865.While located there he held the offices of County Clerk, Recorder of Lake County, County Treasurer and County Commissioner.In 1865 he moved to Denver and opened a wholesale and grocery store with his brother Julius, aptly named Londoner & Brother, going on to open further stores in Colorado, Kansas, New Mexico and Wyoming, at one point turning over £1 million per annum.