1.  Gary Boyd Roberts.  1995.  Ancestors of American Presidents.  New England Historic Genealogical Society, Boston, p. 26.  Wife, Mary, is not Mary Sims.

2.  Lucius R. Paige.  1849.  "List of Freeman." New England Historical and Genealogical Register.  3(1): 89-96.  On p. 92, citing Colonial Records, Vol. I, p. 79 :  "Robte Roise" made Freeman of the Massachusetts Colony on 1 Apr 1634.  Note that this man is Robert Royce of Boston (the one who married Elizabeth), not our subject.

3.  Donald Lines Jocobus.  1926.  "Parentage of Mary, Wife of John Beach of Wallingford, Conn."  New England Historical and Genealogical Register 80(1): 107-109.  On p. 107:

Robert Royce, an early settler in Stratford, Conn., had land recorded there in his name as late a 1658, though he appears to have removed to New London, Conn., a year before that date. . . It needs to be reafirmed that the New London man was a separate individual from Robert Royce of Boston, with whom he has been persistently confused.  Robert Royce of Boston left a widow Elizabeth; Robert Royce of New London died in 1676, leaving a widow Mary. . .  Four of the five sons of Robert Royce of New London removed to Wallingford, and the widow Mary probably lived with the son Samuel.  On 14 July 1697, 'Vpon ye Request of Ensigne Samll Royse son of Mary Royse of Wallingford Deced intestat the Court graunted powr of Adstration of ye Remaining estate of ye sd Deced to him ye sd Ensigne Royse for ye Recovering of any debt or debts due to ye Deced and yt he give an accompt of his Adson wn by ye Court Requird.' (New Haven County Court Records, vol. 1, p. 251.)

4.  Clarence Leslie Hewitt.  1968.  "Some Light on the Marriage of Robert and Mary Royce of Connecticut."  New England Historical and Genealogical Register 122(4): 274-277.  Not just about the marriage, but a thorough review of what little is known of Robert Royce ( -1676).  Bottom line:  surname of Mary is unknown.

5.  Edgar J. Bullard  1930.  Bullard and Allied Families:  the American Ancestors of George Newton Bullard and Mary Elizabeth Bullard.  Self-published, Detroit, MI (online at GenealogyLibrary.com).  On p. 243:

The surname Royce is found on the early England and New England records and was the original spelling of the now more common name of Rice, used by descendants of the early families.    ROBERT ROYCE, ancestor of this family, was born in England and was an early settler in Stratford, Connecticut, where his name is on record in 1644. In 1657 he removed to New London, where he was constable in 1660 and the following year was a member of the General Assembly. Robert Royce of New London died in 1676, leaving a widow, Mary, who died in 1697, and on July 14 of that year administration of the remaining estate of the widow, who died intestate, was granted her son, Samuel Royce. The surname of Mary, wife of Robert Royce, is not on record, but a Mary Sims and Robert Royce were married at Martsock, Somersetshire, England, June 4, 1634, and the date is suitable for the marriage of the New London, Connecticut man. (Article by D. L. Jacobus, N. E. H. G. Reg., Vol. 80, p. 107-09.) Four of the five sons of Robert Royce removed to Wallingford. The children sharing in the distribution of his estate were... [see list above].

6.  Thomas P. Hughes.  1887.  American Ancestry: Giving the Name and Descent, in the Male Line, of Americans Whose Ancesotrs Settled in the United States Previous to the Declaration of Independence, A.D. 1776.  Vol. II.  Local Series. Columbia County, State of New York.  Munsell, Albany, NY.

[p. 106]  The name is variously spelled Royce, Rice, Roise, Rose.  Robert Rose came to America in the ship Frances from Ipswich, England, 1634, with a son name Robert, age fifteen years.  See. Hist. [p. 107] of Wallingford, by Davis; Savage's Hist. of Gen. New England; Hotten's Emigrants.

7.  Gillespie, C. Bancroft & George Munson Curtis.  1906. An Historic Record and Pictorial Description of the Town of Meriden, Connecticut... Vol. I.  Journal Publ. Co., Meriden, CT.  On p. 129:

As has already been mentioned the South Farms district was at first called Milking Yard and later Royce's (or Rice's as we may now begin to call it; for at this date the name began to assume the modern form) Farms. But this later name embraced a much larger tract than that known as South Farms.     It began at the town line and extended up Colony or Country road on both sides, until it embraced a large part of what is Walnut Grove cemetery to-day and it stretched over the hill to the west, for some distance, perhaps including the farm of Rev. Samuel Whittlesey, once known as Town Farm, which has already been described as bounded on the west by Town Rock, and on the south by the river; and also the Rice farms to the north. Every member of the Rice family in Meriden except Nathaniel, seems to have located his home farm in this territory, although like all the other planters they owned other tracts in various parts of the town. Robert Royce, the pioneer, came to this country about 1631 and landed in Boston just in time to get into that theological dispute which twisted the budding town into a turmoil of religious controversy and centered around Mrs. Hutchinson and which was such a mixture of metaphysical and religious problems that it is doubtful if any one to-day knows what it was all about. Robert got away safely and went to Stratford and the next we know of him he was in New London, where he was elected a delegate to the General Court in Hartford, and was a respected and influential man. His four sons, Nehemiah, Samuel, Nathaniel and Isaac, came to Wallingford among the first planters, and all of them except Nathaniel took the major part of their land grants at Milking Yard, although, doubtless, having their homes in Wallingford village. These four sons were the fathers of numerous sons, and to many of them were given the paternal and fraternal names, with utter disregard to the trouble that was to be the lot of those of modern days who should attempt to assign to each his proper place in a genealogical tree...