Any other US record on this ancestor?
Did you find your ancestor's arrival manifest?
By any chance a "gubernia" was ever mentioned by a family like Warschau, Suwalki, Kowno, Wilno to name just a few.
I'm using one step/gold form www.stevemorse.org
and using the information that is on the ancestor's record but no Sam MILLER and no one from Gryva. Something obviously is not correct. It could be a year of arrival or a name of a ship.
Can it be : Griva.
Alternate names: Grīva [Latv], Griva [Rus], Grive [Yid], Griwa [Ger], Gryva [Lith], Grzywka [Pol]https://www.jewishgen.org/Communities/community.php?usbgn=-3...
historical map: http://igrek.amzp.pl/mapindex.php?cat=wig100http://maps.mapywig.org/m/WIG_maps/series/100K_300dpi/P25_S4...
left margin large 36 inward to GRIVA.