Walrus and sisterships

I just saw the file and photos of the 60 foot Walrus in Bolger 5. I believe there was also a smaller sistership - maybe 48 feet - but I can't remember where I saw her. In any case, I'd like to track down some permutation of a study plan for either or both. Does anyone know of a source?

(I'd ask Ms. Altenburger but I expect she is heavily burdened right now, with estate and business matters.)

Thanks for any help.

John Craig