About Richard Calvert
Richard Calvert is listed in the book "The Ark and Dove Adventurers" written for the Society of the Ark and the Dove by George Ely Russell and Donna Valley Russell:
2. William Calvert (Generation 2), son of Leonard and Anne (Brent) Calvert, was born c1642 in England, and died in Maryland on 10 January 1682, drowned while trying to ford the Wicomico River. He married before 5 November 1662 Elizabeth Stone, daughter of Governor William Stone. She was living in Virginia with her son Richard about 1698 .
Arriving in Maryland in 1661, he received a large part of land from his uncle Cecil and inherited certain property of his father's. He was Principal Secretary of Maryland and was also a member of the Assembly and the Council, and served as Deputy Governor of Maryland .
The inventory of The Honorable William Calvert's personal property was taken on 13 July 1682 by Thomas Spinke and James Pattison, and valued at 662 pounds 18 shilling 2 pence. The account was filed 30 April 1686 by administrator Elizabeth Calvert, widow .
On 26 September 1668 Charles Calvert of St. Mary's County, son and heir of William Calvert, and Elizabeth Calvert, widow and relict, conveyed to Joshua Doyne of St. Mary's County 600 acres of 50,000-acre Nanjemoy, taken up by William Stone, father of Elizabeth .
Children of William and Elizabeth (Stone) Calvert :
1. Charles Calvert (Generation 3), b. 1662
2. Elizabeth Calvert, b. 1664.
3 perhaps William Calvert, b. 1666, living 1696 in St. Mary's County. Witnessed will of William Robinson of St. Mary's County 29 November 1696 
4. perhaps George Calvert, b. 1668.
5. perhaps Richard Calvert, b. 1670, d. unmarried 1718.
 Dorman 474, cited Maryland Chancery Court, 2:706
 Nicklin 144-145
 Maryland Inventories and Accounts 7C:206, 8:479.
 Charles County Land Records P:36.
 Nicklin 144-145; Maryland Chancery Court, CL:868.
 Ella Foy O'Gormon, Descendants of Virginia Calverts, n.d. 63.
Richard Calvert's Timeline
November 11, 1670
Charles County, Province of Maryland, (Present USA)
This birth to William Calvert and Elizabeth (Stone) Calvert has yet to be proven, but it is referred to in "The Ark and the Dove adventurers," written by the Society of the Ark and the Dove, George Ely Russell and Donna Valley Russell, pg 43:
October 6, 1695
Westmoreland County, Virginia Colony
March 17, 1697
Annapolis, Anne Arundel County, Province of Maryland
January 30, 1699
Westmoreland County, Province of Virginia
Westmoreland Co., VA
November 11, 1718
Virginia Colony, (Present USA)