(CNN) The thousands in attendance as Joseph Walker was laid to rest Monday couldn't tell you much about him -- except that he served his country.

Joseph Walker

Walker, born in 1946, was in the Air Force during the Vietnam War era and was discharged from service honorably.

He "was called by Our Heavenly Father on Monday, November 19th, 2018," his obituary reads . The obituary does not say what Walker's rank was.

Gilbert Cavazos, funeral director at All Faiths Funeral Service in Austin, Texas, said All Faiths provided a wake and funeral for Walker. But his family were concerned about meeting the cost of the services.

The funeral home said it would provide shelter for Walker until something could be worked out but, despite repeated efforts, it has since been unable to reach the family.

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