Preface: I ask this question for judges who lack (auto)biographies or whose (auto)biographies lack enough detail.
I purpose to learn about the personal lives or opinions of judges, to discover whether they affected their judging.
I exemplify with controversial landmark cases in the Commonwealth. For example, SCOTUS Justice Stephen Johnson Field had a poor record on racial problems, but his nephew (SCOTUS Justice David Josiah Brewer) seems more progressive.
Moreover, in Buck v. Bell, regarding the justices in the majority, are there resources that reveal their personal opinion of eugenics?