Almost 40,000 died in Finnish civil war.

Pretty good summary. Some mistakes, but nothing major.
The Whites claimed after the Civil War that 16 000
people have died; a study by the Lutheran Church soon
after the war found 24 000 dead. New studies in 1960s,
when the war became studied by neutral historians,
brought the number to over 30 000.

The funny thing is that the Whites claimed the Reds
to be barbarious monsters, who murdered and pillaged;
when in fact it was they who did most of the butchering.
But as the saying goes, the Whites won the war, but
the Reds won the peace. All the plans that the Whites
for the future of Finland crumbled sooner or later.