Papers Relating to Karl Pearson's Second Marriage <p>Consists of :</p> <li>letters from Pearson's family and friends about his engagement to Margaret Victoria Child</li> <li>postcard from Registrar confirming date</li> <li>certificate of marriage, 22 Mar 1929</li> <li>Margaret Child's family tree</li> <li>pressed heather buttonhole</li> <li>press cuttings</li> 1928-1929