Morselli
He is a dependable researcher who advances a thesis vis-à-vis the frequency of suicide: “Morselli has stated that the space between the 47th and 57th degrees of latitude, on the one hand, and the 20th and 40th of longitude on the other, was the area most favorable to suicide.” Durkheim cites and critiques his thesis as regards the input of climate on suicide.
Brierre de Boismont
A researcher who has amassed “descriptive work for 1328 cases where the suicide left letters or other records summarized by the author in his book.” His accumulation of facts has been influential in suicide related scholarship, particularly the cataloguing of the ‘suicide of sane persons.’
Protestant Clergy
Durkheim notes, “Nowhere but in England in the Protestant clergy a hierarchy; like the worshipers, the priest has no other source but himself and his conscience.” Durkheim incorporates the Protestant Clergy in the text to expound the correlation which intersects sacred authority and suicide resolutions.
Bartholin
He is the author of De Causis contemptae mortis a Danis, in which he verifies that the ‘Danish warriors considered it a disgrace to die in bed.’ His work offers ample insights vis-à-vis ‘egoistical suicide.’