Here's a breakdown of the poem:
* The oysterman is a greedy man: He has a beautiful wife, but he prioritizes money and oysters over her happiness.
* He sets out to fish: He ignores his wife's pleas and sets sail, vowing to bring her back a hundred oysters.
* He drowns: His boat capsizes in a storm, and he tragically perishes at sea.
* His wife is left alone: The poem ends with the wife left to mourn her husband's death and the loss of his potential fortune.
The poem doesn't address the maid's fate at all. It's possible she stays with the widow, or she might leave to find work elsewhere. The poem leaves this detail ambiguous, allowing readers to interpret the situation as they see fit.