Which preposition to use with strugglers

for Occurrences 2%

When sixteen years of their married life had passed, they were living in a single room in the crowded street of R. Every penny of the inheritance was gonethree children had diedthree survived; a girl of fifteen years, whom the mother was educating to be a teachera boy of twelve who was living at home, and Jessy, a pale, delicate, little struggler for life, three years old.

against Occurrences 1%

The genius of these strugglers against an apparent impregnable seat of wickedness was patience, "the passion of great hearts.

from Occurrences 1%

Through storm-cloud and eclipse must move Each Cause and Man, dear to the stars and Jove; Nor always can the wisest tell Deferred fulfillment from the hopeless knell The struggler from the floundering ne'er-do-well.

Which preposition to use with  strugglers