Best way to handle this situation.

[alabamabluezebra]

Runners on 1st and 2nd. Batter hits a ground ball toward the 3rd baseman. I'm in "C" and move to make the call at 3rd but the ball goes under the 3rd baseman's glove to the outfield. I hustle to the inside of the infield noting that each runner touched their respective bases. Does the home umpire have any responsibilities for bases on this play? Due to the different speeds of the runners, sometimes it's hard to clearly see the touch at 1st base (I usually catch it out of the corner of my eye). Any tips on the best way to see all three initial touches?