Barney's old friend who married Lotta after Barney rejected her. Now a widower, he raises a daughter named Lotta who closely resembles her mother. He is visited by Barney, who offers to finance the daughter's education, unknowingly setting off a complex family conflict.
Their longstanding friendship brings Barney back into Swan's household.
The plot explicitly describes Swan as Barney's old friend, and Barney visits him decades later.
Swan becomes Lotta Morgan's husband after Barney abandons her.
The plot states that Swan married Lotta after Barney rejected her. Swan is later described as a widower raising their daughter.
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