Harry lived just shy of 84 years and we can assume he was drinking for 65 of those years (removing the last one or two years of his life when he slowed down and would drink O’Douls, yet would still pour it in a beer mug and pretend to drink Budweiser at games).
So, Harry told DePorter that he drank 73,000 Budweisers over his life. Over 41 years of drinking Budweiser (25 years with St. Louis and 16 with the Cubs), this averages 1,780 beers a year or 4.9 beers a day. But that still leaves 24 drinking years of his life (his White Sox days -- aka the Falstaff era -- and pre-broadcasting years when he wasn't being financially coerced into drinking Bud) unaccounted for. Assuming the same rate of 4.9 beers a day over those 24 years, that is an additional 42,924 beers.