I'm researching the Texas Keilberg's and would like to talk with you. My research began with my husbands gr-grandfather, Charles Louis Keilberg (went by Louis most of the time). His brother was Otto Keilberg who was the father or grandfather of the Matthew (Mathias) Keilberg you mentioned. Our Keilberg's came to Texas in 1836 according to census records for Charles and Otto. Would love to compare notes with you. Please email me email@example.com
. Counties our Keilbergs were in: Austin, Fayette, Bastrop and Waller Co, TX.