While researching a post that will come up in December for Christmas I came across a Rev. J. E. Rankin, D.D. He delivered a sermon Moses & Joshua (A Discourse on the death of Abraham Lincoln) at Winthrop Church, Charlestown, Ma. while serving as the pastor. The sermon was delivered at noon on Wednesday, Apr. 19, 1865. You can find this sermon at The Martyred President website. On this website you'll find approximately 59 sermons. Sermons often reflect and encourage people in the where do we go from here phase that happens with the death of a relative or in this case the death of the leader of the United States.
For those of you writing during this time period you might find some helpful insights to what the "people" were feeling at this great time of mourning.