Looking for Lucia Miszewski

I am researching the MISZEWSKI/MYSZEWSKI (original Polish spelling)family that arrived in New Plymouth, NZ aboard the Fitz Rueter in Aug 1876. I am Johann's Great Great Granddaughter (from Jozef, son of his first wife Marianna DYTMER). I have managed to track down all the family except Lucia who was 24 yrs old when she arrived. Johann & Marianna (his 1st wife) had a daughter Lucia born in 1873, but she died as an infant, so this mysterious Lucia is not her. There is talk that she wasn't actually a MISZEWSKI/MYSZEWSKI (as noted on ship records), but rather she was the sister of Johann's 2nd wife, Karolina FUNK/FURK. Does anybody have any information about Lucia?