Abigail (Abby) Boxer is a single mother working as a civilian accountant for the U.S. Army. Her Social Security number is 676-73-3311 and she lives at 3456 Alamo Way. San Antonio TX 78249. Helen Abby's 18-year-old daughter (Social Security number 676-73-3312). is a dependent child living with her mother, and she does not qualify for the child tax credit due to tier age. For 2016. Abby's W-2 from the U.S. Department of Defense shows the following: Abby also has taxable interest from Arroyo Seco Bank of $275 and tax-exempt interest from bonds issued by the city of San Antonio of S125. Complete Form 1040A for Abigail for the 2016 tax year