I assume this letter is from Mrs. Harold (Carolyn) Thornburg, 1930-2011. The only clue as to the date is the mention of catechism class, which may have been for those about 10 years-old.
Certainly missed you yesterday! Sorry to hear you had a bad cold and your Mother too.
We had 3 left in our class after 4 went to catechism class. So, Aarron [sic], Wayne and John C and I had a good discussion on "unfinished tasks." You remember we are still talking about the life of Paul and his great "task" – imagine what would have happened to the spread of Christianity if Paul had not completed what God called him to do!
Hope you are lots better and see you Sunday.