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Through the 2016 season, there have been 22 Padres infielders to hit 20 or more home runs in a season. Ordinarily I wouldn't include catchers as infielders, but I've stretched the definition here. There's one guy on the list who hit 20 homers in a season split between catcher and first base, and it didn't seem fair to leave him off. But then I felt like it would be unfair to include him and not the guys who did the deed while catching full-time, but that only added two names to the list.
Between the positions and years listed as hints, this seems like a quiz most people will do well on. Only last names are needed, and there are four minutes on the clock to work with. Once you're done, be sure to log your results in the poll below. Also please be thoughtful when commenting, and use the spoiler bar feature over names.