Fred was born in Russia and died in San Francisco, CA. The 1910 census indicates he was previously married, but that wife is unknown. He and his family immigrated in 1904 via Canada. See the crossing record below. All of the census records are below and an obituary.

Fred married Lena M. Konovaloff (1868-1959). My records show 8 children: Michael, Evdotia, Bessie, John, Stepanida, Fred, Katherine, Nellie. The family lived on Potrero Hill in San Francisco, CA (Nancy Poppin Posey)
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Border Crossings: From Canada to U.S., 1895-1956
Arrival Date: Sep 1904
Port of Arrival: Winnipeg, Manitoba, Canada

Butchnieff, Theodore, age 40, farm laborer, born in Russia, final destination is California; in possession of $100; to Uncle A. Damenoff, 1149 W. 28th St., Los Angeles, CA Port of Landing: Quebec, August 7, 1904; Name of SS (steamship): Montreal, Date of Examination: September 21, 1904
Helena, age 36, wife, born in Russia
Evdotia, dtr, age 17, domestic, born in Russia
Micheal, son, age 15, born in Russia
Stepanida, dtr, age 10, born in Russia
Jacob, son, age 8, born in Russia
Theodore, son, age 3, born in Russia
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1910 U.S. Federal Census-California
San Francisco, CA
ED 38, page 7B
4/25/1910
950 De Haro Street

Buchneff, Fred, head, age 46, second marriage, married for 25 years, he and parents born in Russia, immigrated in 1904; occupation: carpenter-union iron works; speaks Yiddish
Alionoa (possilby Akulena), wife, age 42, first marriage, married for 25 years, 12 children born and 6 still alive), she and parents born in Russia, immigrated in 1904; no occupation
Michael, son, age 20, first marriage, married for 2 years, born in Russia, immigrated in 1904; occupation: laborer lumber mill
Mary, dtr, in law, age 18, first marriage, married 2 years, she and parents born in Russia, immigrated in 1906; occupation: presser-laundry
Bessie, dtr, age 17, single; born in Russia, immigrated in 1904; occupation: presser-laundry
Fred, son, age 11, born in Russia
Kate, dtr, age 5, born in Hawaii
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1920 U.S. Federal Census
San Francisco Assembly District 22, San Francisco, California
ED 165, sheet 1A, page 85
1/2/1920
1945 20th Street

Andresentchenko, George, head, age 28, he and parents born in Russia, immigrated in 1914, rents home, can read and write; occupation: boiler maker-foundry
Stella, wife, age 26, she and parents born in Russia, immigrated in 1905, cannot read/write
Annie, dtr, age 4-11/12, born in CA
William, son, age 2-10/12, born in CA
Vera, dtr, age 3/12, born in CA

Buchneff, Elinor, mother in law, age 50, she and parents born in Russia, immigrated in 1905
Fred, father in law, age 57, he and parents born in Russia, immigrated in 1905
Fred, age 18, brother in law, born in Russia, immigrated in 1905; occupation: boiler maker-foundry
Kate, age 16, sister in law, born in CA (previous census showed Hawaii); occupation: box maker-factory
Aillie (Nellie), age 5/11/12, born in CA
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1930 Federal Census - California
San Francisco County
922a Arkansas Street
ED 38-32 sheet 15A
April 10, 1930

BUSHNEFF, Fred, head, age 66, born in Russia, can read and write; cannot speak english, immigrated in 1905, no occupation
Lina, wife, age 59, born in Russia, cannot read, write or speak english, immigrated in 1905
Nelly, dtr, age 15, born in CA, can read and write and speak english
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FUNERAL NOTICE
BUSHNEFF - In this city, Nov. 27, 1947, Fedor John, beloved husband of Lena M. Bushneff, loving father of Mrs. Duna Treguboff, Mike F. Bushneff, Mrs. Stella Andreyanchenco, Fred F. Bushneff, and Mrs. Katherine McFadyen, and Mrs. Nancy Ascello; a native of Kars, Russia.
Funeral services Sunday, 12 noon, from the Neighborhood House, 953 DeHaro St.
(San Francisco Funeral Service)
[San Francisco Examiner, Saturday, November 29, 1947, page 11]