Johann Steinhauer

"Matthis possessed an exceptional talent for judging the quality of timber and built an international reputation as an assessor of ship's masts".

After his father's death Johann took his place in Riga's Moravian Society, and when the Herrnhuters were outlawed he continued to support the church and its missionary effort in secret.

The Steinhauers brought their case before the Governor General of Livonia, prince Dolgoruky, who supported them, and eventually the Grand Duke Peter, heir to the Russian Throne, named Johann's brother Daniel commissar of commerce to Schleswig-Holstein, saving their property from confiscation.

In 1757 Tobias Georg Efflein (Oeffelein), a German accountant and Daniel's son in law, applied for membership at the Great Guild and was refused on the grounds that he had given no proofs of his standing as a bookkeeper, and that his wife was a Latvian.

[10] Johann Steinhauer's entrepreneurial successes, his efforts to bring about the right of ownership and freedom of worship on behalf of the native Latvians and serfs had far reaching consequences.

Johann Steinhauer III, Moravian Minister and Teacher, Principal of the Fulneck Moravian School in England, who established the Boarding School for young ladies at Gracehill in Ireland and who married the daughter of John Gambold, the first Moravian Bishop of the British Isles;[11] Henry Steinhauer, the first Paleobotanist in the Americas and Principal of the Moravian Ladies Seminary of Bethlehem, Pennsylvania; Botanist and early Ohio plant collector Daniel Steinhauer; Barbara Steinhauer married to Sarepta's (now Volgograd, Russia) Doctor in Medicine Joachim Wier and Johanna Magdalena Riegelmann married to the jurist and administrator of the Hennersdorf Castle in Saxonia; Karl Eduard von Napiersky Dr. Philosophie, researcher, author and publisher of Latvian historical and biographical books: Index corporis historico-diplomatici Livoniae, Esthoniae, Curoniae, Monumenta Livoniae antiquae volumes 1 and 2, Beiträge zur Geschichte der Kirchen und Prediger in Livland.