yitayningwut: The Torah.org article you cited actually demonstrates Rav Henkin ztv’l agreeing with Reb Moshe ztv’l’s 66″ height (which as mentioned previously is itself a lenient position.)
And WADR to Rabbi Doniel Neustadt shlita, a Young Israel Rov in Ohio, his utilizing Bnei Banim (and irregardless if he is published in Yated or no Yated) as a source provides no additional creditability to R.Y.H. Henkin (the grandson). I actually fully agree with “qa”‘s comment about him. If you would like, check out his seforim, inclding his Teshuva on mixed dancing, see what he says and decide if this is a person you want to quote. Or the funniest Teshuvah he has is about – and I promise I am not making this up – whether you are permitted (yes, permitted!) to say “Zatzal” on the Satmar Rebbe ztv’l, or is it prohibited to say Zatzal on him, since Zatzal would imply that he was a Tzadik. I am not kidding. He really has a lengthy discussion about this.