Hi Qrt.S!
Thanks for your reply. But Janis Betiņš was born in 1874 and did not start his activity that year. In 1891 he was only 17 years old...
V.Vilite mentions Johann Joachim Heinrich Bonatz from Saldus (No. 972) who was known in 1870-1898. Maybe JB it's him...
Regards.







