Last week, we celebrated the Relief Society’s birthday or, as I like to call it, “The One Day a Year When Being a Mormon History Nerd Makes You Interesting and Popular.” One of my favorite episodes in Relief Society history is an argument between two Relief Society leaders with intractable opinions and healthy self-confidence. What is unusual about this particular argument is that it took place in the office of President Heber J. Grant. The women were Amy Brown Lyman and Susa Young Gates, both members of the Relief Society General Board. Amy Lyman had been asked by Joseph F. Smith to establish a Social Services Department within the Church…