Longenecker made her first visit to Japan in 1952. There she expanded her knowledge of the Japanese arts and crafts movement called "mingei".[6] Longenecker undertook postgraduate research in Japan, where she studied from Shoji Hamada (1894–1978) and Tatsuzo Shimaoka (1919–2007).[5][4]
Longenecker created her ceramic arts from her own ceramic studio in Claremont, California. From 1944 to 1964, Longenecker exhibited her ceramic arts through Dalzell Hatfield Galleries.[5]
In 1974, with the financial support from her husband, Longenecker incorporated Mingei as a nonprofit organization. Longenecker oversaw the development of the first Mingei museum, which opened in May 1978 at University Town Centre in San Diego, California. In 1978, Longenecker became the museum director.[5][2]
Longenecker also oversaw the architectural design and the development of the Mingei International Museum at a new facility located at Plaza Dr Panama in Balboa Park in San Diego, California, which opened in August 1996. It is a 41,000 square-foot facility.[5]
2005 Honorary Fellow of the American Craft Council.[8]
2011 Inducted into the San Diego Women's Hall of Fame.
Personal life
Longenecker's first husband was John Longenecker. Longenecker's second husband was Sydney Martin Roth. Longenecker had two children. Longenecker lived in La Jolla community of San Diego, California.[5][2][3]
Following a stroke, on October 29, 2013, Longenecker died at Scripps Memorial Hospital in La Jolla, San Diego, California. She was 93 years old.[1][7]
Legacy
1998 Martha W. Longenecker Director's Chair Endowment Fund.[2]