South Dakota Codified Laws
Chapter 01 - Definition And Kinds Of Agency
Section 59-1-5 - Ostensible agency.

59-1-5. Ostensible agency.
Agency is ostensible when by conduct or want of ordinary care the principal causes a third person to believe another, who is not actually appointed, to be his agent.

Source: CivC 1877, §1342; CL 1887, §3965; RCivC 1903, §1661; RC 1919, §1239; SDC 1939, §3.0103.