Frida Kahlo, 1907- 1954.  The long-suffering but resilient persona of the Mexican Surrealist painter has become so well known to North Americans in recent years that her utterly radical lifestyle and Kahlo's penetrating portraits are sometimes recast in terms of recent political and aesthetic values.  Born of a German Jewish father and a Mexican mother, Frida is pictured here in European chlothing holding a heart, a central icon in Mexican games and rituals.