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Virginia Society of the Cincinnati (past Regional Chair French American Scholars Committee 1995; published articles in Cincinnati Fourteen, October 1991, May 1992)
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Veteran Corps of Artillery, State of New York
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General Society of the War of 1812 (Texas Society; past Assistant Marshall General, 2011-2014)
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Military Society of the War of 1812
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Saint Nicholas Society of the City of New York
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Aztec Club of 1847 (National President, 2020-2022)
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Military Order of the Loyal Legion of the United States
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General Society, Sons of the Revolution (Texas Society, Past President, 2000-2002)
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Huguenot Society of America
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Huguenot Society of South Carolina
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National Society, Sons of the American Revolution (Texas Society, 98th President 2012-2013, past National Trustee, 2013-2014)
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General Society of Colonial Wars (Texas Society, Governor 2001-2002; past Deputy Governor General, 2009-2011; Fellow, Samuel Victor Constant Society 2002)
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Sons of the Republic of Texas (past President Dallas Chapter, 1996)
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Colonial Order of the Acorn
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Colonial Society of Pennsylvania
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Order of Indian Wars of the United States
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Order of the Founders and Patriots of America (Texas Society Governor, 2002-2004; Attorney General, 2005- 2008)
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Sons of Confederate Veterans (Texas Division)
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Order of the Crown in America
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Baronial Order of Magna Charta
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Order of Americans of Armorial Ancestry
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Oklahoma 1889er Society
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National Society, Americans of Royal Descent- Membership Chair, Councillor General 1986-89, Custodian General 2001-2004, Founder Member of the Most Venerable Order of Saint Louis
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National Society, Sons and Daughters of the Pilgrims (Texas Society)
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Huguenot Society of the Founders of Manakin in the Colony of Virginia (Texas Society)
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Society of the Friends of St. George's and Descendants of the Knights of the Garter
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Military Order of the Crusades
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Jamestowne Society
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Order of Three Crusades 1096-1192
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Military Order of the Stars and Bars (Texas Division)
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Order of the Crown of Charlemagne in the United States of America- Treasurer General 1986-1989, Chancellor General 1994-1997
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Descendants of the Illegitimate Sons and Daughters of the Kings of Britain
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National Huguenot Society (Texas Society)- Third Vice President General 1997-1999, Chancellor General 1995-1997
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National Society, Sons of American Colonists
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Flagon and Trencher
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Order of the First Families of Mississippi 1699-1817
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Hereditary Order of Descendants of the Loyalists and Patriots of the American Revolution
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Society of the Descendants of Washington's Army at Valley Forge (Texas Brigade)
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Society of First Families of South Carolina, 1670-1700
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Society of Kentucky Pioneers
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Society of Loyalist Descendants
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First Families of Georgia, 1733-1797
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Hereditary Order of the Descendants of the Kings of Scotland (Charter life member)
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Order of the Descendants of Ancient Planters
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Order of First Families of North Carolina
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Sons and Daughters of the Colonial and Antebellum Bench and Bar 1565- 1861
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Ancient Heraldic and Chivalric Order of Albion
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National Gavel Society
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Texas Genealogical College (President 2020-2021, Recipient of the 2019 Hall of Fame Award, and 2022 Legion of Merit)
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Order of St. John (Johanniter-Brandenburg, 1099/1332/1852), Knight of Justice
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Order of Sts. Maurice and Lazarus (Italian Royal House of Savoy, 1100/1254/1572), Knight Commander
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Order of Vila Vicosa (highest Portuguese Royal Order, 1818), Knight Commander
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Order Of Christ (Brazil, House of Orleans-Braganza) – 1119\1318\1822, Grand Cross
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Order of the Rose (Brazil, House of Orleans Braganza, 1829) Grand Dignitary
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Order of Francis I (Royal House of Bourbon of the Two Sicilies, 1829), Knight Commander
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Montenegrian Order of Danilo I (1853), Grand Cross
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Knightly Order of Vitez (Hungary-1920), Knight
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Royal Order St. Michael of the Wing (Portuguese 1147/1171/1986), Grand Cross
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Ethiopian Imperial Order of the Lion (1924/1996), Grand Cordon