Letter (paper size) "official" "Government Letter" size, , was used in government, while paper was standard in most other offices. In the U.S., paper density is usually measured in "pounds per ream" (of 500 sheets). Typical Letter paper has a basis weight of paper of – the weight of 500 sheets (a ream) of paper at and at 50% humidity. One ream of 20-pound Letter-sized paper weighs , and a single Letter-sized sheet of 20-pound paper weighs , which is equivalent to 75.19 g/m. Some metric information is typically included on American ream packaging. For example, 20-pound paper is also labeled as 75
Norman B. Ream from its fire in 1871. Additionally, he served on the Board of Trustees of the Field Columbian Museum in Chicago. Meanwhile, his wife attended fundraisers for Bryn Mawr College, a women's college in Bryn Mawr, Pennsylvania. Ream married Caroline Thompson Putnam in 1876 in Madison, New York. They resided at 1901 Prairie Avenue in Chicago. They had several children. One of his sons, Robert Ream, married Mabel Wrightson, the daughter of Reverend W. G. Wrightson and sister of Harry Wrightson, in Cuckfield, West Sussex, in 1907. Another son, Louis, who graduated from Princeton University and worked for the New York