Charles H. Segerstrom was born in Sweden in 1880 and immigrated to the United States with his parents in 1882. He came to Sonora in the early 1900s with a law degree and formed the Sonora Abstract & Title Company. He became Vice-President and later President of the First National Bank of Sonora and Tuolumne County Bank. He built an empire of mining and hotel interests. He was very active in the Republican Party and achieved sufficient standing to deliver the address at their 1940 national convention, nominating Wendell Willkie for President.