From Dr. Whitmire: In the places where your section divides into 3 parts, Here is how it will go:
tenors
m33-34 T1 and T2 sing top 2 notes, Jon sings lowest note
m47-48 T1 and T2 sing bottom 2 notes, Jon sings highest note
bass
m33-35 B1 and B2 sing bottom 2 notes, Peter sings highest note
m43 B1 and B2 sing top 2 notes, Peter sings lowest note
m47-48 B1 and B2 sing bottom 2 notes, Peter sings highest note
See you soon. -DrW