Although there appears to be many variants to the spelling of his name, Delalande seems to be the way the family wrote it, but a recent scholarly work has it as De Lalande.
LATVIAN TENOR KARL JÖRN (1873-1947) 7 CDR
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*KARL JÖRN (RIGA, LATVIA, 5 JANUARY, 1873 – DENVER, COLORADO, 19 DECEMBER,
1947)*
He made his debut in 1896 at Freiburg as Lionel in Martha...