generation time is Ty = 27.98 for females and 7,,, = 30.45 for males. Based on male and female fertility of 19th century Utah Mormons [6], and on the Model West life table (mortality level 12, e§ = 47.5 for females and 44.5 for males). HOUSE_OVERSIGHT_011166 --- PAGE BREAK --- 13 0.08 - Females o direct e