A historic Monrovia house once owned by the Pulitzer Prize-winning novelist Upton Sinclair is on the market. Listed at just under $2 million, this neo-Mediterranean-style house — completed in 1923 — sits on nearly a third-acre lot. It spans 2,667 square feet and has four bedrooms and three bathrooms. Sinclair and his second wife, Mary Craig, bought the house in 1942, shortly before he won the Pulitzer for “Dragon’s Teeth,” the third book in his “Lanny Budd” series set during the Nazi takeover of Germany in the 1930s. Six months after Mary Craig died in April 1961, Sinclair remarried. He...