Found at www.2020site.org ....
When a recent death in the family, or when personal preference results in a so-called "quiet" wedding, when only the immediate family and very close friends are invited, a short note written either by the bride-to-be or her mother, is the only invitation. Following is a note of this kind from the bride-elect to her friend.
Two weeks from Monday, on the ninth of September, Mr. Brill and I are to be married. We are asking only a few of our most intimate friends to be present, and would be very glad to have you among them. The ceremony will take place at four o'clock.
With kindest regards, I am
Harriet B. Howe