You have much more information than I do!
I haven't been able to find my WILLIAM DOOLITTLE and wife, MARTHA FRANCES McDANIEL in any census data at all. I keep seeing this 1900 DeWitt County, Illinois census on everyone else's research, but I sure can't find them there in 1900 on Ancestry.com.
As far as photos....I wouldn't know! I have many old photos that I have yet to identify. They were in a box that was handed down from my G-G-Grandmother. I've found that there are quite a few pictures of the McDaniel's, and I could have pics of Martha Frances McDaniel-Doolittle.
I just wouldn't know, though.
Here's what I have on the DOOLITTLE side. Might be something you don't have, or something we need to research further.....
WILLIAM DOOLITTLE, born 1790, NY, died in Crawford Co., IL (unknown date), married about 1810, NY, to HANNAH WILLISON. She was born 1788, NY.
Children of William Doolittle and Hannah Willison are:
1) VARNAL DOOLITTLE, b.1814, NY, died Crawford Co., IL (unknown date), Married 1835-1840, OH to HANNAH Unknown.
2) WILSON DOOLITTLE, b.6/2/1821, NY, Married AMELIA CONRAD.
3) JOSEPH DOOLITTLE, b.1825, NY, died 1/11/1871, Elkton, Crawford Co., IL, Married 1848, Licking Co., OH to SUSAN PARR, daughter of William Parr and Elizabeth Unknown. Susan was born 1831, OH.
~~~~Children of JOSEPH DOOLITTLE and SUSAN PARR are:
~1) ELLA DOOLITTLE, born Unknown.
~2) WILLIAM DOOLITTLE, born 1849, Hutsonville, Crawford Co., IL, died unknown in Farmer City, DeWitt Co., IL, Married 4/30/1881, Hutsonville, Crawford Co., IL to MARTHA FRANCES "Nannie" McDANIEL, daughter of James McDaniel and Frances Jane DeLapp. Martha was born 12/22/1854, Palestine, Crawford Co., IL and died unknown in Farmer City, DeWitt Co., IL.
No further information found.
~3) LAVINA NINA "Vina" "Verna" DOOLITTLE, b.5/1856, Hutsonville, Crawford Co., IL, Married 12/31/1871 or 1874 (two different marriage records at familysearch.org), to CLINTON EVANS, son of Noah Evans and Martha Bell. Clinton was born 7/1848, Hutsonville, Crawford Co., IL.
~~~Children of Lavina Doolittle and Clinton Evans are:
~~1) CARESSELL EVANS, b.1874
~~2) EVA EVANS, b.1876
~~3) PERRY EVANS, b.10/1878
~~4) VIRGIL EVANS, b.12/1884
~~5) EDWARD E. EVANS, b.8/1886
~4) ROSA DOOLITTLE, b.1859, IL, Married Unknown CULP.
~5) ALVA DOOLITTLE (male), b.1861, Hutsonville, Crawford Co., IL, Married 10/20/1892, Jasper Co., IL to BARBARA HARMON DAWSON.
~6) EDWARD R. "Eddie" DOOLITTLE, b.7/1865, IL, Married 1888, IL to JENNIE S. Unknown. She was born 5/1861, IL.
Children of Edward R. Doolittle and Jennie S. Unknown are:
~~1) DAISY DOOLITTLE, b.11/1887, IL
~~2) LEONARD DOOLITTLE, b.5/1892, IL, Married 1915 to EDITH C. Unknown. She was born 1894, MI.
Children of Leonard Doolittle and Edith C. Unknown are:
~~~1) AVERY E. DOOLITTLE, b.1917, IL
~~~2) NANCY C. DOOLITTLE, b.1923, IL
~~~3) ELISE M. DOOLITTLE, b.1926, IL
(1930 Glendale, Los Angeles Co., CA Census)
If I could only find whether William Doolittle and Martha McDaniel had any kids....they just seem to disappear.
I also have POSTLEWAITE's in my files that connect to SEANEY's in Crawford County, IL. Interesting!
I'll be happy to help you if I can. Just let me know.
Other that what I have here, I'm at a brick wall with William Doolittle and Martha McDaniel.