In the 1910, Mary Heaviside, Henry’s widow, is living in Brooklyn at 761 Marcy Avenue. Henry died on the 14th of April 1908. He was living at 480 Gates Avenue, Brooklyn at the time of his death. He was 62. Mary is living with sons Henry and Frederick. Following the children in order:
John Burrows Heaviside in 1910 is living in Brooklyn as well at 126 Garfield Place, age 37. He is a Book Keeper at a Dry Goods Company. His wife, Frances A., is 29 and the daughter of German immigrants. They have been married for 7 years and have two children: Henry P. age 6 and Frances A. age 5. Also in the 1915 Census, John B. Heaviside and wife Frances are 38 and 32. Son Henry is 11 and daughter Frances is 10. John’s occupation is listed as Accountant. They are living at 339 Washington Avenue. In the 1920 Census, John B. Heaviside and Frances are living at 335 Parkville Avenue in Brooklyn. John is 42 and an accountant with the Hartford Insurance Company. Son Henry P. is 16 and daughter Frances is 14. In the 1925 New York State Census, John (misspelled Heaveyside) is living at 1224 35th Street in Brooklyn. Occupation, accountant and age 50. Frances A. is 40, housewife. Son Henry P (Harry in this census) is 21 and Frances is 20 and a stenographer. In the 1930 Census, John B. Heaviside and Frances are 56 and 48 living at 1224 35th Street. John is an auditor for an insurance Company. John Burrows Heaviside, named for his uncle, grandfather and possibly his great grandfather, died November 19, 1935. His widow Frances A. would not make the next Federal Census either, passing away Feb. 24, 1939. Their son Henry in the 1940 Federal Census is a lawyer, living in Queens at 6974 180th Street, age 35 with his wife Hannah, age 34 and a 9 year old son.
Henry P. and Mary Corrigan Heaviside’s daughter Mary Heaviside has married a man named John E. Dunn and had been married 5 years in the 1910 Federal Census. John Dunn is a driver for a milk company and is 31 years old. Mary Heaviside Dunn is 26 and the children are John W., age 4 and Anna M., age two. In the 1915 New York Census, Henry P. Senior’s widow Mary is living with daughter Mary and son-in-law John Dunn at 291 Nostrand Avenue. Mary is listed as 60, John E. Dunn 36; Mary, his wife is 31. Children John W. Dunn is 10; Anna M is 7, and Henry H. is 4. In the Federal Census in 1920, John E. Dunn and Mary Heaviside Dunn are living at 362 Lefferts Avenue, Brooklyn. John is 41 working as an inspector for a milk company. Mary is 36; John W. is 14 and a delivery boy for a grocery store, Anna M. is 11, Henry H. is 9 and a new child, Dorothy is age 2 years, 4 months. In the 1925 New York State Census, I cannot locate the family. In the 1930 Federal Census, John E. Dunn, age 51 is living with Mary, his wife, age 46 are living at 1456 East 53rd Street, Brooklyn. John is foreman at the milk company, son (John) William is 24 and a clerk in the banking industry; Anna M. is 22 and a stenographer in the employ of the City of New York; Dorothy is 13. Henry is no longer listed. There is a listing for a Harry H. Dunn who died December 17, 1926 at age 16. Also living with them is Mary E. Heaviside, age 78, widowed. Mary E. Colligan Heaviside died January 17, 1936. In the 1940 Federal Census, E. John Dunn (?) is 60, still at 1456 East 53rd Street. His is the foreman at the Milk Company. His wife, Mary Heaviside Dunn is 55 and living with them is daughter Dorothy, age 22, working as a typist at a real estate office. A John E. Dunn, age 62, of Brooklyn, passed away May 10, 1942. Without examining the death certificate, I cannot be certain if this is the same John E. Dunn. Likewise, a Mary Dunn also of Brooklyn, age 61, died January 6, 1947.
Frederick Heaviside (and Henry) do not show up in the 1915 census. We do know that Frederick served as a corporal in the US Army during the final year of World War II beginning in June of 1918. He is not in the NY area for the 1920 Federal Census. Or at least I have been unable to locate him. In the 1925 New York State Census, Frederick Heaviside is married to wife Mary Hooper, both 32. Fred is working as a clerk. They have three daughters in 1925: Catherine age 11; Helen 4 and a living daughter is age 3. Living with them is Catherine Hooper, mother-in-law, age 57. In 1930 Federal Census, they are living at 1505 East 55th Street, Brooklyn (same address as 1925). Both Frederick and Mary are 37. He is employed as an agent for a Children’s Society. Catherine is 16 and working as a Clerk in an Insurance Office; Helen is 9; a living daughter is 8; Frederick J. Junior is 3 and daughter Joan is 2. Mother-in-law Catherine Hooper is living with them age 63. In the 1940 Federal Census, the family has moved to 1622 East 54th Street. Frederick J. Heaviside is employed as a Stenographer in Adult Education. He is 47 as is his wife Mary. Living with them are Helen age 19; a living daughter, age 18; Fred Jr, age 13; Joan age 12; and a living son age 7.
Henry P. Heaviside, Jr. born April 3, 1891, married Helen E. McAuliffe in 1913 and they had three children. Grace Heaviside was born March 25, 1914 in Brooklyn and married Thomas Regan; Robert D. Heaviside was born february 9, 1917 and married Henrietta Ward Smith in 1942; and William Henry Heaviside, born in 1920 married Evelyn Patricia Davis in 1948. In the 1930 Federal Census, this family is living in Oak Park in Cook County, Illinois at 404 S. Maple Avenue.
Frederick John Heaviside born March 24, 1893, married Mary Catherine Hooper and they had seven children. Catherine, born October 26, 1913 married Raymond W. Baker; Eugene, who died as a child; Helen married Anthony Pokowitz in 1945; Dorothy Jean married John Edward London; Joan Mary, married Richard Kean in the early 1950’s; and additional two sons still living.
Note: With recent knowledge of descendants still living, I have removed their names for privacy reasons from this post, which has been expanded from a previous entry.