Anna Markuns

Maiden name listed as Gigas in her obituary, and Grigas in the obituary of her son Francis. The City of Boston's marriage register lists her as Annie Zigiutie, daughter of Thomas Zigiutie and Maryona née Zanashkaite. Zigiutie is likely a misspelling of Grigaitė, which is a form of the surname Grigas.

Information from Massachusetts marriage records:
Name: Annie Zigiutie
Age: 24
Birth Year: abt 1891
Birth Place: Russia
Marriage Date: 31 Jan 1915
Marriage Place: Boston, Suffolk, Massachusetts, USA
Father: Thomas Zigiutie
Mother: Maryona Zigiutie (Zanashkaite)
Spouse: Kazimir Markunas
Source: Ancestry.com. Massachusetts, U.S., Marriage Records, 1840-1915 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2013.