Just before brother is getting the $200 from Elizabeth it is 8:51. Then later when Horace comes home and goes to start writing it is 8:45.
It shows the parade was in the winter of 1918. There wouldn't be leaves on the bushes and the trees in the winter.
In the closing credits, the march "Indepedentia" is credited to John Philip Sousa. The piece was composed by Robert Browne Hall.