William O. Douglas,
Kelleam v. Maryland Casualty Company of Baltimore Md…
“ Since respondent-surety had no present claim to relief on its own behalf in the federal court, that court had no jurisdiction to adjudicate the dispute between the full-bloods and the half-bloods. Even if, on this record, the presence of respondent-surety would support a claim to diversity of citizenship, that diversity was lacking as between the other parties. ”
