I found this while researching the Titanic sinking:

When the Adriatic docks in Liverpool on 11 May [1912, 26 days after the
sinking], seven-week-old survivor Vera Dean and her brother Bertram steal the
show.  According to one newspaper, she 'was the pet of the liner during the
voyage, and so keen was the rivalry among the women to nurse this lovable
mite of humanity that one of the officers decreed that first and second class
passengers might hold her in turn for not more than ten minutes'.

While I realize that 'nurse' may not mean breastfeed, I am certain that the
lifeboats' larders of drinking water and hardtack crackers did not include
cases of Enfamil.  So many little ones were in lifeboats without their
mothers.  Some wonderful women nursed these children.

No milk bank.  No formula.  No problem.

Elizabeth Novelo Puzar, IBCLC