Searching for Lines from a family owned Vom Baerenzwinger Whelped in 1985 - Page 1

My dad, a retired Law Enforcement Officer recently passed away. My wife and I  found the Certificates of Pedigree from the kennel for the "dog of his life" as he used to say. Ladchen Baron Von Fritz.

• He was a black and tan bred at Heidi Hatfield's Baerenzwinger Colorado Kennel and was whelped 11/2/1985.
• The Sire was Cody Vom Baerenzwinger and the dam was Greta Vom Baerenzwinger. A
• pparently they were sired by German Breeders overseas.
• The breeder line has the name Salvatore Anziano Jr though the papers are from Heidi's Baerenzwinger Kennel and go back 6 or 7 Generations.

Other older threads on here indicate that Heidi returned to Germany and the Kennel is not in existence any more.
My wife and I are looking to see if we can trace Fritz's lineage through siblings lines here in the US for ownersip purposes. Any help would be appreciated!