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Mary Katherine DeLong Edit Profile

artist , writer

Mary Katherine DeLong, American writer, artist. Named Dame of Letters, Taos County History Society, 2001.


DeLong, Mary Katherine was born on July 25, 1917 in Kansas City, Missouri, United States. Daughter of Harvey Alvaro DeLong and Katherine Pearl Ruble.


Student, Baker University, Baldwin City, Kansas, 1933—1934. Student, College San Mateo, California, 1952—1978. Associate of Arts cum laude, Fashion Institute Design and Merchandising, 1985.

Student, College Marin, Kentfield, California, 1992—1994. Student, University New Mexico, Taos, 1997—1998.


Continuity editor, scriptwriter, actress W9XBY, Kansas City, 1935. Radio actress, scriptwriter Denver, 1936—1938, New York City, 1939—1940. Founding director Young Horizons, Whitestone, 1941—1945.

Administrative assistant, media buyer, printing production supervisor Frank Haylock, San Mateo, California, 1947—1967. Founder, principal Things From Everywhere, Belmont, 1967—1969, DeLong Properties, San Mateo and Tiburon, 1970—1993. Liturgical art designer St. Matthew's Episcopalian Church, San Mateo, Church of Incarnation, Lay Academy Grace Cathedral and St. Peter's, San Francisco, 1980—1995, First Presbyterian Church, Taos, New Mexico, 1996.

Freelance writer The Taos News and Horsefly, since 1995. Designer, editor Habitat for Humanity/Taos quarterly newsletter, 1998—2001. Founding member Women's Association of Electronic Industry, editor-distaff sidebands.


Commissioner San Mateo County Human Relations Commission. Committee member Status of Women. Founder, board chairman Phoenix on the Hill, San Mateo County, California.

Co-chairman task force on peace and world order Committee on Race, Religion and Social Concern, San Mateo. Co-founder, board member Samaritan House. Board member, secretary Sister City Association.

Board member Citizen's Committee for Student Affairs. Committee member San Mateo County Red Cross. Active Taos Community Orchestra and Chorus.

St. James Choir; alum San Francisco Symphony Chorus. Member emeritus Guild St. Martin of Tours, Grace Cathedral, San Francisco. Member Navy League; editor San Mateo County newsletter.

Member advisory board, secretary Town of Taos Library. Member of Society of Muse of Southwest, Taos History Museum Alliance, Friends of Taos Public Library.


  • Other Interests

    Singing, quilting, genealogy, reading, mentoring.


Married Frank Basil Haylock, July 6, 1935 (divorced 1967). Children: David Gordon, Douglas Gregory, Susan, Jonathan Michael.

Harvey Alvaro DeLong

Katherine Pearl Ruble

Frank Basil Haylock

David Gordon DeLong

Douglas Gregory DeLong

Susan DeLong

Jonathan Michael DeLong