| Birth | Abt 1877 | NY | |  | |
| Extra information | 1877 | Fultonhistory has multiple stories about Grace. She led a troubled life, with three marriages. Morphine, alcohol, and other problems are mentioned. For example, on Fultonhistory: Utica NY Sunday Tribune 1897-1899 - 1065.pdf | | | |
| Residence | 1880 | Marital Status: Single; Relation to Head of House: Niece - Cazenovia, Madison, New York, USA | | | |
| Divorce | Abt 1896 | Newspaper story described her divorce. She was still a minor. Her legal guardian was William McMahon. - John Charles BROWN | | | |
| Marriage | 17 Aug 1896 | Brief marriage. According to a newspaper story, she was already a "wayward" lady in legal trouble. A grocery clerk named John Brown kept her out of jail by avowing his affection for her. - Syracuse, New York, USA - John Charles BROWN | | | |
| Extra information | 1901 | A lengthy newspaper article discusses some of Grace's problems, including a marriage on Tuesday that ended on Thursday. Her mother was interviewed for the article. Syracuse Evening Telegram, 16 Apr 1901. - Syracuse, Onondaga County, New York, USA | | | |
| Marriage | Apr 1901 | Two day marriage. Wild write-up in the local paper. He was described as being drunk. She was a morphine addict. - Syracuse, Onondaga, New York, USA - Lewis Clark CROWELL | | | |
| Extra information | 1902 | A story in 1900 says she had been Mrs McMahon and Mrs. Brown. (Fultonhistory file Syracuse NY Evening Herald 1900 - 1835.pdf) Her 2-day husband from the above 1901 story was L.C. Crowell | | | |
| Extra information | 1903 | First husband was John Brown. Second was William McMahon. William and his brother John had been part of Grace's father's law firm. William had once served as Grace's legal guardian. Fultonhistory Syracuse NY Evening Herald 1896 - 3035.pdf | | | |
| Residence | 1905 | Mentioned in mother's obituary - Syracuse, New York | | | |
| Death | 1908 | Based on a story in the Syracuse paper - Philadelphia, Philadelphia, Pennsylvania, USA | | | |
| Extra information | 9 Mar 1908 | Story in Syracuse Journal: Lengthy article says Grace Knickerbocker, stepdaughter of JH Phillips, is dying alone in Phila. Mentions multiple marriages, legal and drug problems. - Philadelphia, Philadelphia, Pennsylvania, USA | | | |