This is my timeline for Leon, I have this entered in my FTM 2014 program as Person Notes. It allows me to see where I need to research further, I also have this in an excel spread sheet with sources listed under each event and this helps me see everything at a glance and I can then evaluate the information based on the source. As you can see I have some missing information.
1858 Born 10 Feb to John Hayden Dargin & Elizabeth Vanover, in St Louis, Missouri
1860 US Federal Census
1870 US Federal Census
1880 US Federal Census
1895 8 Jan Married Margaret May Hallenbeck in New York City, New York. His residence was the Imperial Hotel, age 34, born in St Louis, Missouri to John Hayden Dargin & Elizabeth Dix. This was his first marriage. She was 21 born in Albany New York to John James Hallenbeck & Amy Frances Atkens, her residence was 23+ - N-Y6.St New York City, New York, this was her first marriage, also. (They did have her name down as Maggie but lined though it.) Witnesses: Wm C Dargin & (Thomas Cooke?) They were married by Henry Lubeck, Rector of the Church of Zion & St Timothy
1895 20 Mar arrived in New York on the Normannia with Wife Mrs. L Dargin. He is listed as a merchant, she is a wife and they have 5 pieces of luggage each. they boarded in Naples.
1896 29 Feb Daughter, Amy Frances, born in Manhattan, New York, New York
1897 Son, John Hayden, born
1897 New York City Directory - Leon Dargin, 478 B'way, woolens
1900 US Federal Census - Leon Dargin age 40, born Feb 1860 in Mississippi, living at 1838 7th Ave Manhattan, New York City, New York, wife Margaret M, age 26, born June 1873 in New York; Children: Amy F, age 4, born Feb 1896 in New York, John H, age 2, born Sept 1897 in New York; Servant Anne Rogers, age 18, born Mar 1882 in Ireland. His occupation is listen as Commercial Traveler
1910 US Federal Census - Leon Dargin, age 52, born Missouri, living at W116th Manhattan, New York City, New York, married 5 years, wife Margaret May, age 36, born New York, Children: Amy Frances, age 14, born New York, John Hayden, age 12, born New Jersey & Servant Bessie Bolund age23, born Ireland. His occupation is listed as woolens
1911 New York City Directory - Leon Dargin, 572 Bway h438 W116th, woolens
1912 New York City Directory - Leon Dargin, 572 Bway h15 Claremont Av, woolens
1915 New York City Directory - Leon Dargin, h15 Claremont Av (Downing, Clark & Co)
1915 New York State Census - Leon Dargin, age 57, residence, 15 Claremont Av, Manhattan, New York City, New york with his wife Margaret May, age 42 and children Amy-19, Hayden-17,Betty-3 and servant, Nora Gibbons, age 25 of Ireland
1916 New York City Directory - Leon Dargin, h15 Claremont Av (Downing, Clark & Co)
1917 New York City Directory - Leon L Dargin, h15 Claremont Av (Hager Clark & Co)
1920 New York City Directory - Leon Dargin, h924 W End Av
14 Feb 1920 Died of Pernicious Anemia, which he had for a duration of 2 years. Living at 924 West End Ave, Burough of Manhattan, New York City, New York. He was born 10 Feb 1920 in the US, to John Hayden Dargin & Elizabeth Vanover. He was married to Margaret M Dargin and his occupation was, mercantile, woolens.
1920 16 Feb buried in Woodlawn Cemetery
As I have time I will add links to the actual source documents, some of which I still have on order and some I have saved to my computer.
If you have any information regarding this individual feel free to share.