Since you spelled the name Katharine rather than Katherine, you must be referring to St. Katharine Drexel. I can find no symbols or representations of her.
The Patron Saints Index shows no symbols for Katharine Drexel.
St Katharine Docks was created in 1828.
Katharine St. George died on 1983-05-02.
Katharine St. George was born on 1894-07-12.
Katharine Drexel was her birth name.
March 3 is Katharine's feast day.
Katharine Drexel was born on November 26, 1858, at Philadelphia, Pennsylvania.
Some were St. Katharine Drexel and St. Angela Merici
Bensalem Township Pennsylvania
St. Mark the Evangelist School was founded in 1912 by Saint Katharine Drexel as the first Catholic School in New York City for African-American students.
Katharine Hooke has written: 'St. Peter's on-the-Rock, Stony Lake, Ontario' -- subject(s): History, St. Peter's on-the-Rock (Stony Lake, Ont.)
March 3 is her memorial.