Mrs. Mary Lehenbauer lived on a rural route outside Hannibal, the Mississippi River town made famous by Mark Twain.
https://en.wikipedia.org/wiki/Hannibal,_Missouri
In November of 1910, Mrs. Lehenbauer received a postcard invitation from one of her children who lived on Reservoir Street in Hannibal.
(I do not believe that this house is still standing.
A current street map of Hannibal shows Reservoir Street now cut off and shortened by an expressway through the town.)
The face of the postcard is illustrated with a drawing of white flowers framed by fronds of fern.
There is no greeting on the face, which meant that the postcard could be used for multiple purposed -like a note card.
On the reverse, the sender (identified only as M. H. Lehenbauer) invites Mary to visit “next Thursday the 24th “.
I believe that this day, a fourth Thursday, was Thanksgiving Day.
It is not clear if the writer was a son, an unmarried daughter, or the daughter-in-law – the writer bears the name, “Lehenbauer”.
All the members of Mary’s household are invited; the invitation says, “you all” are to come.
Rudolph and Lena are also invited by name.
If the invitation is accepted, the writer urges Mrs. Lehenbauer to “answer this write (sic) away”
One hopes that the invited family members and friends were able to meet for a wonderful feast on Thanksgiving Day.