William J. Blackwell was born in 1843 in New Jersey. He married Adelaide M. Blood in 1883 in California and owned bottling and brewing companies in Seattle and Slocan, British Columbia before he came to Skagway in 1898. Here he started the B&B Bottling company with Mr. S.E. Beazley. He moved on probably to Nome where he was a member of the Eagles until 1915. He was also a member of the Arctic Brotherhood from 1898 to 1902 in Skagway. One account says he died in Alaska on this day, October 5, 1922. Washington state census records show him in a Sedro Wooley mental institution in 1930 and that he died there in May 1930. Not sure which is correct, but nevertheless he did have a business here on 5th Avenue until 1907. He manufactured and bottled soda water, sarsaparilla, ginger ale, champagne cider, sarsaparilla and iron, as well as all kinds of mineral waters with syrup.
Washington state records; business directories; 1900 census; Daily Alaskan 1900.
I found Blackwells grave on find a grave website and it says 1930.