From Wuerttemberg Immigration Index:
Stoll/Dittus, Georg Friedrich
Birth Date: 28 Jan 1833
Birth Place: Maisenbach
District: Neuenburg
Emmigrated: 1847
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1860 U.S. Census: Mt. Pulaski, Logan Co., IL, FHL# 0803 200, page 203
Ulrich Stoll is living 2 doors down with the Schaffenackers ( Katherine Stoll)
Stepfather Erhard and Mother Mary Agnes are living next door.

1449, 1479, Fred Dittus, 26, Farmer, Values blank, Germany
Sarah, 19 Penn [Hagenbuch]
Mat Wrenster, 38, Farmhand, Germany [looks like Rentschlers [1822]]
Fred , 24 [1836]
Martha, 18 [1842]
Mat, 21 [1839]
Barberry, 15 [1845]
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no 1870 Census
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1880 U.S. Census: Chester, Logan Co., IL, FHL# , ED 38, page 5
All of the information matches the existing dates and records.
In addition Sarah Hagenbuch age 68 Fred's mother-in-law is staying with them she and her parents were born in Pennsylvania.

38, 38, Fred Dittus, 47, Farmer, √, Wuertemberg, Wuertemberg
Sarah, 39, wife, Keeping house, PA, PA, PA [Hagenbuch]
George, 17, farmer laborer, school, IL, Wuertemberg, PA
William, 15, farmer laborer, school, IL, Wuertemberg, PA
Charles, 13, farmer laborer, school, IL, Wuertemberg, PA
Anna, 10, at home, school, IL, Wuertemberg, PA
Edward, 4, , , IL, Wuertemberg, PA
Sarah Hagenbuch, 68, mother in law, , PA, PA, PA

Another copy of the above from the LDS Disks:
Census Place: Chester, Logan, Illinois
Source: FHL Film 1254227 National Archives Film T9-0227 Page 83A
Relation Sex Marr Race Age Birthplace
Fred DITTUS Self M M W 47 WURTEMBURG
Occ: Farmer Fa: WURTEMBURG Mo: ---
Sarah DITTUS Wife F M W 39 PA
Occ: Keeping House Fa: PA Mo: PA
George DITTUS Son M S W 17 IL
Occ: Farm Laborer Fa: WURTEMBURG Mo: WURTEMBURG
William DITTUS Son M S W 15 IL
Occ: Farm Laborer Fa: WURTEMBURG Mo: WURTEMBURG
Charles DITTUS Son M S W 13 IL
Occ: Farm Laborer Fa: WURTEMBURG Mo: WURTEMBURG
Anna DITTUS Dau F S W 10 IL
Occ: At Home Fa: WURTEMBURG Mo: WURTEMBURG
Edward DITTUS Son M S W 4 IL
Fa: WURTEMBURG Mo: WURTEMBURG
Sarah HAGENBUCH MotherL F W W 68 PA
Fa: PA Mo: PA

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1910 Census they have each been married once, for 50 years.
He's 77 she's 69. She had given birth to 5 children, only 4 were living.
He and his parents were from Germany.
She and her parents were from Pennsylvania.
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Logan County, Illinois
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DITTUS, HAGENBUCH, MEYER, RENTSCHLER, STOLL
Biographical Record of Logan County, published in 1901 Chicago: S.J. Clarke Publishing Co., page 320

FREDERICK DITTUS

Frederick DITTUS, a retired farmer residing in Mount Pulaski, is numbered among the early settlers of Logan county as he came to this section of the state among those who laid the foundation for its prosperity and progress by braving the hardships of pioneer life and thus opening the way to civilization. Throughout the long years of his residence here his career has been an upright, honorable one, gaining him the unqualified confidence and regard of his fellow men.

Mr. Dittus was born in Wuerttemberg, Germany, January 28, 1833, and is a son of John and Mary A. (RENTSCHLER) Dittus. The former, a farmer by occupation died in his native land and the mother afterward became the wife of Erhardt STOLL, who in 1847 brought his wife and her children to the new world crossing the Atlantic in a sailing vessel, which completed the voyage in forty-seven days. Arriving in New York they proceeded directly by steamboat, canal and wagon to Springfield, Illinois, and in the spring of 1848 removed to Logan county, locating in Laenna township, where Mr. Stoll purchased eighty acres of land. He added to this place until he had two hundred acres at the time of his death, which occurred in 1860. His wife survived him and continued to make her home on the old farm until called to her final rest.

Frederick Dittus is the oldest living child of his mother's first marriage. He attended common schools of Germany between the ages of six and fourteen years and with the family he crossed the Atlantic in 1847, arriving in Logan county the following year. Here he assisted in the cultivation and improvement of the home farm until he was 26 years of age, when he made preparations for a home of his own by his marriage to Miss Sarah HAGENBUCH a native of Pennsylvania and a daughter of Amos and Sarah HAGENBUCH, who were early settlers of Logan county, coming to this state from Pennsylvania in 1859.

After his marriage Mr. Dittus purchased eighty acres of land in Chester township and locating thereon began its improvement with characteristic energy. In course of time the entire amount was under a high state of cultivation and as the years passed and his financial resources increased he made other purchases until within the boundaries of his farm is comprised four hundred and fifty acres of valuable land. He successfully engaged in the raising of grain, hogs and cattle and in his farm work prospered from year to year, thus, annually augmenting his income. At length, in 1891, he put aside the more arduous duties of the farm, to which he had given his earnest and unremitting attention for so many years, and removed to Mount Pulaski, where he is now practically living a retired life, merely supervising his investments.

The marriage of Mr. and Mrs. Dittus has been blessed with five children: George F., who is engaged in farming; William, who follows the same pursuit; Charles F., who is operating the old homestead; Anna, the wife of Fred MEYER of Baker & Son department store, of East St. Louis, Illinois; and Edward a well-known lumber merchant of Mount Pulaski. The family is one of prominence in the community, the sterling worth of its members being widely acknowledged. While actively carrying on his business interests Mr. Dittus has found time to faithfully perform his duties of citizenship and has rendered efficient service to his fellow men in public office. For many years he was a member of the school board and was clerk of the board in Chester township. He was also supervisor of Chester township for eight years and retired from office as he had entered it -- with the confidence and good will of his constituents. He is now a Gold Democrat and has long advocated the principals of Democracy. Throughout the greater part of his life he has been a member of the Lutheran church, has served on the board for more than thirty years and has been church treasurer for the past eight years. His home is a fine substantial residence in Mount Pulaski, a monument to his thrift and enterprise in former years. His life record proves most conclusively that success is not a matter of genius, but the outcome of earnest effort, carefully directed by sound judgement and his example should serve to stimulate and encourage others to press forward along the highway to prosperity.

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In the above bio:
Frederick Dittus is the oldest living child of his mother's first marriage,
This is an odd statement since he appears to be the only child of his mother's first marriage.