April 14, 1865: why did the Lincolns have guests?

[RJNorton]

(06-06-2015 06:14 PM)Eva Elisabeth Wrote:  According to W. E. Reck writes that A. Lincoln had invited the Grants on Thursday to accompany him and Mary on Good Friday evening.

So,.when and how did the Grants receive the invitation?

Eva, is there a footnote for this? (I always have thought the invitation came on Friday, although Grant spent time with both Abraham and Mary on Thursday.)