On back-to-back days, June 7–8, he hit his only two MLB home runs against the Pittsburgh Pirates' Vic Lombardi (a three-run shot)[3] and Tiny Bonham (a two-run homer),[4] respectively.

In the latter game, he provided all the run support needed for Phillies' pitcher (and eventual Baseball Hall of Famer) Robin Roberts, who hurled a 2–0, shutout victory.

Batting for Jackie Mayo with the Phils trailing, 5–3, Hollmig rifled a two-bagger to right field, sending Del Ennis to third base.

[5] In his only start of the season, two days later against the Pirates, Hollmig's RBI single was a key hit in a five-run rally that carried Philadelphia to a 5–3 victory.

[6] Each win was crucial, because the Phillies and Brooklyn Dodgers would battle to the season's final day before Hollmig's club prevailed and averted a best-of-three tie-breaker series.