As far as I can tell, there is no obituary in the Washington Post, the most likely source for an obituary for someone who died in Falls Church, VA. Ragna is also not listed in the will/probate documents. I have three suggestions for you.
From the accounting, the funeral home was Arlington Funeral Home http://www.arlingtonfunerals.com/
. No cemetery information is listed because a family member paid for the monument and gravesite and was reimbursed.
The executor of the estate was a lawyer, Donald Manning. His firm is Manning & Murray http://www.manning-murray.com/
And if you email me at VA_room@fairfaxcounty.gov
, I will tell you the names of all people mentioned in the will. If you want a copy of the will itself, you'd need to talk to the Fairfax County Probate Court http://www.fairfaxcounty.gov/courts/circuit/probate.htm
Virginia Room, Fairfax County Public Library