Lukas's deceased father is remembered warmly by Bernard, but Lukas associates him with drunken collapses and death from tub gin.
Bernard Holland says he knew Lukas's father and considered him a good man. Lukas remembers a different domestic reality: his father passed out on the kitchen floor or in the bathroom. Lukas associates his death with drinking tub gin and remembers his burial beneath potatoes.
He is Lukas's deceased father, recalled through sharply different personal memories.