She was named as Emily in the 1860 Federal Census; 1870 - Emma; marriage license - Emily; 1880 - Emaline; 1900 through 1930 - Emma; her husband's obituary - Emily.

Benjamin F. Nelson, son of William and Charlotte Nelson, was born December 25, 1853, in Hire Township, McDonough County, Illinois. He died January 23, 1935, and was buried at Webster Cemetery.  There was also a mortician's marker in place for Benjamin according to Van Dine, reading "Ben T. Nelson, died Jan. 23, 1935, aged 81 Ys. 38 Ds.  Obituary

On December 17, 1875, Benjamin F. Nelson put his mark on a marriage affidavit requesting a marriage license for himself and Miss Emily Lincoln.  Accompanying the affidavit was a note signed by T. J. Lincoln, expressing his approval for Emily to be "weaded" to Benjamin.  They were married at Carthage on December 18, 1875, by John B. Risse, County Court Judge.
Marriage Documents

The children of Emily Lincoln and Benjamin F. Nelson were:

i.	Homer Franklin Nelson, born November 12, 1876.  He died after April 1, 1930.
ii.	Robert Wesley Nelson, born April 6, 1879 in Illinois, died May 20, 1948, in Fountain Green Township.  Burial at Webster Cemetery.

[Lincoln], Thomas, 47, male, white, carpenter, value of real estate 2000, value of personal estate 350, born KY, male citizen of the U.S. aged 21 or more
Martha J, 35, female, white, keeping house, born IN
Hattie, 14, female, born IL, attended school within the year
Emma, 12, female, white, born IL, attended school within the year
Robert, 11, male, white, born IL, attended school within the year
Thomas, 8, male, white, born IL, attended school within the year
Mary, 2, female, white, born IL

Nelson, William, 55, male, white, farmer, value of personal estate, born KY, male citizen of the U.S. aged 21 or more
Mary, 50, female, white, keep house, born KY
John, 25, male, white, farmer, born KY, male citizen of the U.S. aged 21 or more
James, 23, male, white, farmer, born IL, male citizen of the U.S. aged 21 or more
Benj, 21, male, white, farmer, born IL, male citizen of the U.S. aged 21 or more
Tyler, 18, male, white, farmer, born IL
William, 16, male, white, born IL, attended school within the year
Mary, 14, female, white, born IL, attended school within the year

Nelson, Benjamin, white, male, 34, married, farmer, born IL, both parents born KY
Emaline, white, female, 30, wife, married, keeping house, born IL, both parents born IL
Homer, white, male, 3, son, single, born IL, both parents born IL
Robert W, white, male, 1, son, single, born IL, both parents born IL

Nelson, Benjamin F, head, white, male, Jan 1852, 48, married for 26 years, born IL, both parents born KY, farmer, months not employed - 4, could not read or write, spoke English, owned his farm free of mortgage, farm schedule 113

Emma, wife, white, female, Dec 1857, 42, married for 26 years; mother of 2 children, both living; born IL, both parents born KY, could read, write and speak English

Homar F, son, white, male, Nov 1877, 22, single, born IL, both parents born IL, farm hand, months not employed - 5, could read, write and speak English

Robert W, son, white, male, Apr 1879, 21, single, born IL, both parents born IL, day labor, months not employed - 6, could read, write and speak English

Nelson, Benjamin F, head, male, white, 46, married (1st) for 34 years, born MO, both parents born KY, spoke English, farmer, general farm, working on own account, could not read or write, paying on a mortgage on his farm home, farm schedule 2

Emma, wife, female, white, 52, married (1st) for 34 years; mother of 2 children, both living; born IL, both parents born KY, spoke English, could read and write [sloppy handwriting on the m's in Emma (it looks more like Ernina), but other names on the same page show the same formation of m's]

Lincoln, Thomas J, father-in-law, male, white, 87, widower, born KY, both parents born KY, spoke English, could read and write

Nelson, Ben, head, paying on a mortgage on his farm home, male, white, 66, married, could not read or write, born IL, both parents born KY, spoke English, farmer, general farm, working on own account, farm schedule 86

Emma, wife, female, white, 61, married, could read and write, born IL, father born KY, mother born OH, spoke English

Nelson, Ben, head, owned his home, home value 1200, did not own a radio, did not live on a farm, male, white, 76, married, age at first marriage - 22, could read and write, born IL, both parents born KY, spoke English, [no occupation shown], whether a veteran of the U.S. military or naval forces mobilized for any war or expedition- no

Emma, wife, female, white, 72, married, age at first marriage - 18, could read and write, born IL, father born KY, mother born IA, spoke English