Bill - At findagrave.com there is a Bryson H Hull in Sante Fe National Cemetery in Sante Fe, NM.The birth is a few days off - 11 May 1916 - but the death is the same 14 Jan 1999.
I found a news article about a wedding for Bryson H Hull, son of W M Hull, Pittsburg, to Margaret Evelyn Tompkies dated 30 Jun 1946 in the Dallas Morning News.According to the Texas Birth Index at Ancestry she was b 12 Mar 1920 in Dallas and in 1930 she is age 10 in Dallas with parents James S Tomkies & Lema E.I don't know if this is your Bryson however.I can email you the article if you wish - can't attach it here.
Also, re Agnes & Arron Grady.....I could find no record for an Aaron but there is a Henry Grady Thomas who married Sarah Agnes Hull.They are both buried in Pinecrest Cemetery, Troup, Smith, TX(findagrave again) with birth of 24 Dec 1895 for Agnes and birth of 09 Dec 1890 for Henry & death dates for both.Also buried there is son-in-law James Boyd Miller with an obituary. It appears their daughter, Ouida Jo Thomas, was the wife of James B Miller.She is also buried in Pinecrest, according to her obituary but not at findagrave with the others.
I can send you the obit & the wedding article if you think you would like them.....please email me direct at firstname.lastname@example.org