Many people believe that John Partridge who immigrated from England and lived in Medfield, Massachusetts was the son of John and Jane (Hogg) Partridge of Navestock, Essex, England. This is not correct. The origins of John of Medfield and his siblings is unknown.
The idea that these were the same men comes from the Visitation of Essex which had the family tree of Bartholomew Partridge and includes his son John who married Jane Hogg.  The visitation shows that Captain John Partridge had four children: John (age 14 in 1634), William, Jane and Margaret.
There is a marriage recorded in the parish of St. Gregory by St. Paul in London.  Jane Hogg and John Partridge were married on 11 May 1619. This is quite likely the marriage of John. In the visitation John and Jane Partridge are said to have four living children: John, William, Jane and Margaret. In the Navestock parish register there are baptismal records that would correspond to Jane and William.  There is also a burial record for William Partridge son of John on 12 September 1636.
On 1 Oct 1652 John Partridge of Navestock wrote his will. He made his son John and his wife Jane his executors. He left bequeaths to his daughter Margaret, married to Unknown Hudson and to the children of his daughter Jane, who had married John Lake, it would seem that she was dead. The will was probated in 1663 by his wife Jane. 
Jane wrote her will in 1666. She named her Lake grandchildren, Thomas and Jane, her Hudson (Hutchin) grandson Robert. He daughter Margaret Hudson, her daughter Ann Partridge (wife of her son John) and her Partridge grandson John.  The bulk of the estate went to Ann Partridge, as her grandson John was still under the age of 21.
In the church of St. Thomas the Apostle in Navestock, Essex is a memorial stone for several men named John Partridge. The stone reads: John Partridge, Gentleman died 24 March 1653 age 34. John Partridge the son died 18 December 1671 age 23. These are the son and grandson of Jane Hogg Partridge. Another stone is for John Partridge Gentleman heir to John Partridge Citizen and Cutler of London who died 25 October 1683. These are the son and grandson of Gabriel Partridge who was the brother of John Partridge of Navestock.
Clearly the children of John and Jane Hogg Partridge are not the Partridge siblings who settled in Medfield Massachusetts.
 Walter Charles Metcalf, The Visitations of Essex by Hawley, 1552; Hervey, 1558; Cooke, 1570; Raven, 1612; and Owen and Lilly, 1634. To which are Added Miscellaneous Essex Pedigrees from Various Harleian Manuscripts: And an Appendix Containing Berry's Essex Pedigrees, Part 1, (London: Mitchell and Hughes, 1878) 465, digital images, Google Books (https://www.books.google.com : accessed 14 September 2016).
 "England Marriages, 1538–1973 ," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NKG1-8NG : 10 December 2014), John Partridge and Jane Hogge, 11 May 1619; citing Saint Gregory By Saint Paul, London,England, reference ; FHL microfilm 375,028.
 Navestock Parish Register, St. Thomas the Apostle, database, FreeReg2 (http://freereg2.freereg.org.uk/search_records/55106e51e9379072060e9aa1?search_id=57db262d791e3b017d03b40e : accessed 15 September 2016) Jane Partrech baptized 24 Oct 1622, daughter of John Partrech.
"London, England, Wills and Probate, 1507-1858," digital images, Ancestry.com (www.ancestry.com : accessed 16 September 2016) John Partridge, Essex, 1663, citing London Metropolitan Archives and Guildhall Library Manuscripts Section, Clerkenwell, London, England; Reference Number: DCP/K/C/06/MS 25628/3; Will Number: 14.
 "London, England, Wills and Probate, 1507-1858," digital images, Ancestry.com (www.ancestry.com: accessed 16 September 2016) Jane Partridge, Essex, 1666, citing London Metropolitan Archives and Guildhall Library Manuscripts Section, Clerkenwell, London, England; Reference Number: DCP/K/C/06/MS 25628/7; Will Number: 19.