ok let´s forget about Libau.
In 1920 census there is no entry abt the year or duration of marriage, unfortunately.
In 1930, there is age at first marriage 27 for Morris and 23 for Fanny. So it is not quite clear if the marriage took place in 1909 or 1910 ( if one considers data as correct).
The only Liebe ( but forename here ) Levit I found arrived on June 22, 1909 aboard the Kaiser Wilhelm II and was too young ( 18). No Frome, Frame with matching surname at all.
In 1930 there is a Urian?? Tergin? ( also born in Minsk) listed directly below the Morris Fergan family with a br i l Nathan Levit(s). Maybe this a hint. But I just noticed that Nathan and his sister Lillian were born in NY. So it should be nothing but coincidence.