Following up on one of the items as I research it to add it to my site:
The name printed on this check is that of the signer, "Marcus L. Ward", who became Governor of the state of New Jersey, serving from 1866 to 1869.https://en.wikipedia.org/wiki/Marcus_Lawrence_Ward
Regarding his endeavors during the period the check was written (emphass mine):
During the American Civil War, Ward became identified prominently with the Union cause, primarily as a philanthropic advocate for those serving in uniform. Ward devised and managed one of the first systems in New Jersey for enabling soldiers to set aside monthly allotments of their pay for delivery to their families and gained the nickname "the soldiers' friend." He invested personal funds to create a wartime hospital for convalescing service members, and later helped establish a soldiers' home for wounded and disabled veterans. Ward soon created an office devoted to aiding veterans, which assisted them in procuring pensions, medical care, and other benefits.
It's conceivable that this check is from that effort.