The English-speaking races neglect the vocative particle, and I never heard it except in the Southern States of the AngloAmerican UnionOh, Mr. Smith.
"Supplemental Nights, Volume 1"
Richard F. Burton
This word literally means "brother-in-law," but it is the vocative used by the Cree in speaking to anybody he feels kindly toward.
"The New North"
Agnes Deans Cameron
"No, sire:" Scudamore scarcely knew what to call him, but adopted this vocative for want of any better.
"Springhaven A Tale of the Great War"
R. D. Blackmore