I believe, I have found the "Pacific Sight" inventor in a number of records. I wonder if Mr. Walter Joseph Sutton sold the Rights to his approved sight patent to "Pacific"?

Checking 1930 U.S. Census records, it appears Walter was a 36 year old Machinist  living with his wife, Helen B., son, Jack W., and daughter, Lorraine, at 424 Balboa, San Francisco, Cal.

Walter was born in San Francisco, June 1, 1893. The second youngest of ten children, at age 16 he was a Cutter Operator.

In a 1915 City Directory, Walter is a Machinist residing at 1111 Steiner.

He married in 1918. His WW1 Draft Registration has him living at 2123 Bush St. and "Self-Employed" at a Machine Shop located at 223 Fielson St. (?) - maybe Freelon St.(?).

His WW2 Draft Registration card has Walter J. Sutton living at 301 S. Vineyard St., Honolulu, Territory of Hawaii. He was employed in the Instrument Shop at Pearl Harbor.

Soc. Sec. records indicate Walter died at San Francisco in February 1976.

I could not link this Walter Joseph Sutton to addresses or other direct connection to the Pacific Gun Sight Company. However, he seems likely to be the San Francisco Inventor, documented in the Pacific Gun Sight patent.

I suspect maybe he sold the rights or received a royalty on his "no-drill" sight design.

As manufactured by the Pacific Gun Sight Company, Walter J. Sutton's design was drastically changed. However, the basic principle, of the aperture sight being retained by a 'pin' in the magazine cut-off hole and a 'lock-screw', remained.