World Moo Duk Kwan® Proudly Remembers Keiko Mason, Sa Bom Nim, Chil Dan, #19023
Soo Bahk Do and Moo Duk Kwan are registered trademarks ®

It is with profound regret and deep condolences that we post this sad news.

Keiko Mason, Sa Bom Nim, a significant contributor to the 75th Anniversary of the Moo Duk Kwan, November 9, 2020.

Keiko Mason, Sa Bom Nim, Chil Dan #19023, Age 85, passed away peacefully in her sleep on December 15, 2020, due to health issues.  There was a small private family ceremony.

Ted Mason, Sa Bom Nim, also recognized as a significant contributor to the 75th Anniversary of the Moo Duk Kwan, November 9, 2020.

She is survived by her husband, Ted Mason, Sa Bom Nim, Pahl Dan #12895, her children: Brenda, Michael, Teddy, and Jennifer.  The Mason family is a Moo Duk Kwan Family.  All of the children are either KDJ or Dan members.

The Masons, a Moo Duk Kwan Family.

The Mason Family has been providing quality instruction in Soo Bahk Do/Tang Soo Do to North County San Diego since 1968.  Carlsbad Soo Bahk Do:

Carlsbad Soo Bahk Do updated their phone number.

Keiko Mason, Sa Bom Nim, was one of several women in the Moo Duk Kwan, to achieve Ko Dan Ja level, and has been a dedicated and fierce supporter of the Moo Duk Kwan and the U.S. Federation for decades.  Her service to the Moo Duk Kwan has provided a positive and strong role model for Women in the Moo Duk Kwan, around the world.  She attained great success as an instructor and a Moo Do In role model for her own children, as well as every person she met during her Moo Do career.  Her family has had a long personal relationship, not only with the Founder, Hwang Kee, but also continued that connection with the current Kwan Jang Nim H.C. Hwang.  She achieved Chil Dan in her senior years.   She will be truly missed.  May she rest in eternal peace. SOO BAHK!

(NOTE:  Please note that the delay in posting this sad event was due to respect the privacy of the family, until we received clearance and permission to announce her passing.)

Please enjoy these memories of her service and dedication to the Moo Duk Kwan.

Taken during her Chil Dan evaluation in Ramona, California
Kwan Jang Nim H.C. Hwang recognizing both Ted and Keiko Mason Sa bom nim, for their dedication in service of the Moo Duk Kwan.


If you wish to leave condolences, please use the comment section or wish to add a final tribute for Keiko Mason, Sa Bom Nim, use the comment section and they will be added to this page post.


Respectfully submitted,

Roberto Bonefont, Sr., #13927

Assistant WMDK webmaster


  • Roberto Bonefont

    Began training in 1967 at the age of 16, as a member of the Brooklyn Highland Park Y.M.C.A., under the guidance and training of Mr. Mike Masley, Jr., Dan Bon 10180, and tested for Cho Dan on June 18, 1969.  Now a certified 4th Dan Ko Dan Ja, and was issued his original testing date Dan Bon 13927 by Kwan Jang Nim H.C. Hwang based on his petition to honor that date and evidence showing Mr. Mike Masley and his instructors,  Mr. Robert Sohn, Dan Bon 6037 and Mr. Vincent Nunno, Dan Bon 7291, were legitimate representatives of the Founder, and Kwan Jang Nim Hwang Kee and the Korean Soo Bahk Do Moo Duk Kwan Association in 1969.

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