Bert Tozer

Martin Arrowsmith

Bert Tozer is Leora's brother and Martin's brother-in-law, a simple, religious farmer who disapproves of Martin's scientific skepticism.

Leora Tozer

Bert Tozer is Leora's protective, pious brother who worries about her marriage to the non-religious Martin and tries to influence her choices.

Martin Arrowsmith

Bert Tozer is Leora's brother and Martin's brother-in-law, a simple, religious farmer who disapproves of Martin's scientific skepticism.

Leora Tozer

Bert Tozer is Leora's protective, pious brother who worries about her marriage to the non-religious Martin and tries to influence her choices.

Leora Tozer

Bert Tozer is Leora's protective, pious brother who worries about her marriage to the non-religious Martin and tries to influence her choices.

Martin Arrowsmith

Bert Tozer is Leora's brother and Martin's brother-in-law, a simple, religious farmer who disapproves of Martin's scientific skepticism.

III

Leora's brother; works as cashier in their father's bank.

Chapter IX

Leora's brother, who represents the local skepticism toward Martin's methods.

III

Leora's brother, who suspects the elopement, confronts Martin, and guards the hallway on Martin's bridal night.

Chapter II

Bert supports his father in opposing Martin, using melodramatic language, but ultimately backs down when Martin threatens to take Leora away forever.

XII

Leora's brother, who interacts with Martin in the town.

I

Supports his father's penny-pinching and argues against Leora's demand for an unconditional loan.

II

Bert is condescending and mocking toward Martin, frequently undermining his medical expertise and making jokes at his expense.

III

Gives Leora driving directions, which she ignores.

I

Martin goes duck-hunting with him; becomes nearly tolerable at sunset.

II

Returns from a convention with pennants and pressures Martin to display one.

III

Gossips about Martin's poker playing, contributing to his reputation.

II

Bert confronts Martin about rumors and urges him to abandon poker and drinking.

III

Bert Tozer criticizes Martin for leaving, suggesting he is a traitor after all the family has done for him.

I

Mentioned in Martin's thoughts as someone he damns along with Pickerbaugh and Tubbs.

Chapter IV

Attending midweek prayer-meeting in Wheatsylvania, North Dakota, with his new Buick sedan.