Elizabeth's mother was a member of a large family of children brought from Germany to America by their parents. The father (Elizabeth's maternal grandfather) died soon after their arrival in America, and the mother (Elizabeth's maternal grandmother) worked hard to keep her family together and to give them all an elementary school education. Elizabeth's father is of Pennsylvania German descent. He has a high school education, and attended a business college. His occupation in 1922 was that of a postal mail clerk. This child weighed 10 pounds at birth, 22 pounds at 6 months, 28 1/2 pounds at 12 months, and at the age of 7 years 5 months she weighed 61 pounds and was 51 inches tall. Superior size was thus consistently maintained from birth to the time of first report, in 1921. Two teeth erupted before she was 5 months old. She was not quite a year old when she began to repeat words. He first sentence was, "Open the door, Daddy," uttered at the age of 17 months. The parents remembered this sentence as a sudden transition from one-word communications into sentence structure. The only illness Elizabeth had ever had until she was 7 years 4 months old was mumps, which came on at that age. Hirt's report continues as follows: Among Elizabeth's first toys was a set of cubical blocks with letters and numbers on four sides. One of the baby's favorite amusements was to hold up a block and point to one side after the other for her entertainer to tell what was on the side of the block indicated. Gradually the game changed, and the baby held up the block and pointed to the picture called for by the entertainer. At the age of 15 months she made no mistakes in finding the animals called for, and very soon afterwards she could find the letters in the same way. One of her first books was _The Story of the Naughty Piggies_. The child seemed never to tire of hearing the story read, and by the time she was two and a half years old, when she sat in the lap of the reader, she could turn the page at just the right place in the story. About that time the two leaves in the center of the book loosened and dropped out. The German grandma made a mistake in sewing them in, putting the second first. Elizabeth quickly discovered the mistake and was very unhappy about it. She followed her grandmother about, asking her to fix it. The grandmother could not understand what the child meant, and finally appealed to the child's mother, who discovered what was wrong. Elizabeth was not yet three years old, and they could not believe that the child detected the difference between these two pages of the book. But after the grandmother ripped out the stitches and replaced the leaves in their proper sequence, the little girl showed unmistakable satisfaction and content.