Leonard Joseph "Chico" Marx was the eldest of the brothers, born in 1887. Adolph "Harpo" Marx was born in 1888, Julius Henry "Groucho" Marx in 1890, Milton "Gummo" Marx in 1892,1900 Census shows birth year as Oct 1892 and his WWI draft registration says Oct 21, 1892, Roll #1613143, on his death certificate and his grave the year 1893 is given. and the youngest, Herbert Manfred "Zeppo" Marx, in 1901.
Leonard Joseph "Chico" Marx was the eldest of the brothers born in 1887 Adolph "Harpo" Marx was born in 1888 Julius Henry "Groucho" Marx in 1890 Milton "Gummo" Marx in 18921900 Census shows birth year as Oct 1892 and his WWI draft registration says Oct 21 1892 Roll #1613143 on his death certificate and his grave the year 1893 is given and the youngest Herbert Manfred "Zeppo" Marx in 1901