Fifty-nine men joined the regiment on these three days.
NYTimes archive links:
[1863-04-26] The Negro Regiments on the Mississippi.
[1863-04-26] THE FIGHT IN CHARLESTON HARBOR.; A DETAILED ACCOUNT.
[1863-04-26] NEWS FROM WASHINGTON; QUIET WITH THE ARMY. A COLORED REGIMENT,

[1863-04-28] Progress of Emancipation in Missouri.