I thought it would be interesting to see the highest home run totals among players with slugging percentages of .300 or below. It's obvious that there's no way to increase your slugging percentage faster than to hit a home run, so anyone who hits a decent number of home runs would have to be pretty bad at getting any other hits to qualify. The guys below certainly hit badly.
In his twelve home run season, Wert had 107 hits in 536 at bats, for a .200 batting average. He had 15 doubles and 1 triple to go with his dozen homers. To me, the most impressive season on the list is Ray Oyler's 1969 for the Seattle Pilots. I already knew he was an incredibly bad hitter, showing up three times on this list of futility. In 1969, however, he reached a career high in home runs while putting up a .165/.260/.267 line in 255 at bats.
The career list for home runs while slugging below .300 is more interesting. There are a lot of pitchers on the list, which makes sense because they tend to have longer careers than position players who don't hit well. The names of the players on the list who weren't pitchers are written in red text.