Fielding must have met his wife, Mary Alley, in the spring of 1830 in Decatur County, Indiana since Mary's family had previously lived in Virginia and in Franklin County (east of Decatur), while Fielding had been south of the Ohio River in Kentucky. Assuming her parents required the 23 year old Fielding to court he 15 year old Mary for some months, his arrival in Decatur County area was surely no later than 1829. Census and land records, as well as known birth dates and places, suggest that Fielding was just one young man in a contingent of Gallatin County families that made this northward trek of about 80 miles before the fall of 1830. it was a short, but difficult journey across the Ohio River, through the forests and over the sparsely populated hills, to the Flat Rock River country of the newly-organized Indiana counties called Shelby and Decatur. In addition to Fielding, these neighbors (1820 census) from the east bank of the Kentucky River were: John S. Rutherford, his wife Jane, and their only unmarried child, Susan (who married George W. Rathburn in 1831 in Shelby County, Indiana); Dudley Mitchell, son-in-law of the older Rutherford couple, his wife, Mary "Polly", and their children; Sarah Mitchell, widow and mother of Dudley, and some of her younger sons (in October 1829 in Decatur County, Indiana, they signed a deed selling Kentucky land on White's Run inherited from John Mitchell, Sarah's husband); Robert Rutherford, son of John S., and his wife Mary "Polly", and son John; Micajah Rutherford, younger son of John S.,his wife wife (nee Berill Lansberry), and cihldren; William Mitchell, son-in-law of John S. Rutherford, his wife Sarah "Sally", and their three children; Edmond Mitchell, son-in-law of the older Rutherford couple, his wife ,Elizabeth, and their daughter.

The Rutherford families and William Mitchell settled in Noble Township, Shelby County, Indiana while the remainder of the party took up land a few miles to the east in Decatur County. Before 1850, six of Lucy's sons and both daughters would choose the fertile soil of Shelby County, (seven in Noble Township) as their site to own and clear land for crops and to raise their children.

Lucy, widow of William, also bought and sold various parcels of land in Noble Township during the 1830's, some jointly with and some to/from her sons. She was an original purchaser of land from the U.S. Government on June 9, 1834. One of her deeds, dated 1840 (Shelby County Deed Book J, page 172) gives her residence as Jefferson County, Indiana, just across the Ohio River from Carroll County, Kentucky. Her household is listed there in the 1840 census of Milton Township. Of the ten children, only Elizabeth appears to still be with her mother. This county is where Elizabeth was married in late 1840 to John Salyers.

As of July 28, 1843, the date of Lucy's will, she was living in Shelby County. This last of her four moves places her near eight of the ten children. Only George W. and Joseph remained in Carroll County, Kentucky, where they farmed and raised large families south of Carrollton on the east side of the Kentucky River. Her will was entered for probate on February 28, 1844 (Shelby County Letters of Administration Book A, page 16). In it, nineteen heirs are named and bequests are made to them in three groups. The legatees are: 1) sons William, Paul, George, Edmond, Fielding, Joseph, Reuben and James; 2) daughters Mary and Elizabeth; 3) grandsons William H, son of Paul Mitchell, John, son of Robert Rutherford, Alexander, son of William Mitchell, Calton, son of Edmond Mitchell, William S., son of Fielding Mitchell, John W., son of George Mitchell, Robert, son of Reuben Mitchell, Hezekiah, son of James Mitchell, and William, son of John Salyers.

The names in each group seem to be listed in birth order. After specific bequests to the sons (one dollar each) and the daughters (cash and personal items as special recompense for caring for Lucy in her later years), the residue of the estate was to be divided equally among the nine named grandsons. Joseph did not marry until after his mother died, and had no son to share in this distribution. The legacies to Lucy's children were reported paid by the executor, Austin Coleman, in late 1844. The final estate accounting was presented to the Shelby County probate court in November, 1848 by Paul Mitchell "administrator with the will annexed" (Shelby County Probate Order Book D, page 293). Paul, the oldest living son residing in Shelby County, had recently been appointed after the death of Austin Coleman. With one minor exception, each of the grandson-heirs received $11.27 in one or two payments. Research results show that each of these boys was the oldest son in his family.

Fielding was the original purchaser of 120 acres in section 23 in western Addison (now Shelby) township, Shelby county in 1837.