M, #1571, b. February 1836
| Source* | | Source(s): Info from father's bios (Evd 280 & 284.) |
| Birth* | February 1836 | Lewis Franklin Clark was born in February 1836 at Yellow Spring Twnshp, Des Moines Co., Iowa, date per 1900 census. |
| (InHomeOf) Census1850 | 1 June 1850 | He appeared on the 1850 census in the household of Benjamin Wallingford Clark, pg 393 #428-441, Yellow Spring Twnshp, Des Moines Co., Iowa. His info on the census included - Clark, Lewis 14 b.VA. |
| (InHomeOf) Census1860 | 1 June 1860 | Lewis Franklin Clark appeared on the 1860 census in the household of Benjamin Wallingford Clark, pg 815 #138-130, Yellow Spring Twnshp, Des Moines Co., Iowa. His info on the census included - Clark, Frank 24 b.IA farmer. |
| Marriage* | 1866 | Lewis Franklin Clark married Mary E Clark in 1866 at Franklin Twnshp, Des Moines Co., Iowa, married 34 years per 1900 census, married 49 years per 1910 census. |
| Census1870* | 1870 | Lewis Franklin Clark appeared on the 1870 census as the head of household, pg 578b #193-191, Yellow Spring Twnshp, Des Moines Co., Iowa, Clark, L F 24 (sic, s/b 34) b.IA farmer $2050-$1880. |
| Census1880 | 1880 | He appeared on the 1880 census as the head of household, ED 108 pg 116a #137-139, Flint River, Des Moines Co., Iowa, Clark, L F 44 b.IA farmer. |
| Residence | 1888 | He lived in 1888 at Pasadena, Los Angeles Co., California: per bio of father (Evd 280). His father's will refers to him as L.F. |
| Census1900* | 1900 | He appeared on the 1900 census as the head of household, ED 38 sht 4b #78-85 1322 S Georgia St Clark, Louis F (indexed Lowis) 64 b.IA Feb 1836 day laborer, rents home, married 34 years. |
| Census1910* | 1910 | He appeared on the 1910 census as the head of household, ED 49 sht 17a #236-268, Los Angeles, Los Angeles Co., California, Clark, Louis F 74 b.IA married 49 years (sic, s/b 44), rents home. |