Etelka Krausz Ungar - Moherhood

@ Ignatz and Etelka's only biological child was Magda Ungar Koves. Sanyi, Bozsi, Ilus and Lilli were the children from Ignatz Ungar's 1st marriage which ended in his wife's death. I would like to discover who this 1st wife was because her granddaughter in Hungary would love to know about this unidentified woman as would I,