Based on the content of the poem, the person most likely to be Molly's husband is the man lying beside the cannon. The poem describes an Irish cannonier who is fighting in the vanguard, and it mentions that his faithful Irish wife stands beside him. Given that this husband would be associated with the cannon, the best choice would be the man lying beside it.
In terms of what is emphasized the most in both the painting and the passage, the correct answer would be the woman, Molly Pitcher, or Molly Maguire. The poem highlights her bravery and significance in the battle, often referring to her by name and acknowledging her role alongside her husband.