Source, photo and biography: (not all available on some passengers)
http://www.encyclopedia-titanica.org/biography/1058/

Penko Naidenoff

Born: abt 1890
Residence: Gumostnik (Gumoshtnik), Lovec (Lovech), Bulgaria
Occupation: Laborer
Destination: Chicago, Illinois USA
Status: died in sinking - body not recovered

He was accompanied by fellow inhabitants of his home village: Lailio Jonkoff, Peju Colcheff, Marin Markoff, Lazar Minkoff, Stoytcho Mionoff, Nedialco Petroff and Ilia Stoytcheff



**not a relative - posting for genealogical purposes only, and I have no more information regarding this passenger.