Yianni’s streak is 75.
Kemp’s wiki applies current rules to results that counted at the time. I have his entire record in a doc after he called me in 2018 wondering why he wasn’t listed in ESPN’s graphic
Wrestling records in published reports are almost always suspect in the pre-computerization era due to wrestling’s penchant for absolutely stupid rules on what does and doesn’t count. Also, streaks that bridge the era of divisional splits also adds confusion, such as some athletes that competed in the college division, D2 and D3 included and others who did the same excluded.
I’ve been trying to validate win streaks for years and it’s not easy. I’ve got a pretty robust list on my computer (it might also be accessible via a subscriber link but I’d have to double check)