Trafalgar Ancestors database at the National archives UK

There are 11 Blake males listed on The Trafalgar Database (https://www.nationalarchives.gov.uk/trafalgarancestors/) including five from England, four from Ireland, one from Wales and one from America.

David Blake aged 22 born in Newcastle.
Ship: HMS Victory
Rank/Rating: Able Seaman
   
Service details
Comments: From: Woolwich Tender
HMS Victory
Ship's pay book number: (SB 399)
11 May 1803 to 15 January 1806 (Was at Trafalgar)
Rank/rating: Able Seaman
Comments: prest
HMS Ocean
Ship's pay book number: (SB 274)
17 January 1806 to 14 April 1809
Rank/rating: Able Seaman
HMS Ville De Paris (1)

Prisoner of War #840 serving on HMS Friends, 7 Sep 1813 (2)
   
Sources used
(1) The National Archives (UK): Catalogue reference: ADM 36/15900
(2) The National Archives (UK): Catalogue reference: ADM 103/465 (part 1)

Jacob Blake aged 30 born in America.
Ship: HMS Revenge
Rank/Rating: Able Seaman
   
Service details
Comments: From: Utrecht, Dowry prest
HMS Revenge
Ship's pay book number: (SB 487)
14 June 1805 (1)
   
Sources used
(1) The National Archives (UK), Catalogue reference: ADM 36/16545


James Blake aged 20 born in Manchester, Lancashire, England.
Ship: HMS Royal Sovereign
Rank/Rating: Landsman
   
Service details (1)
          
HMS Royal Sovereign
Ship's pay book number: (SB 527)
1 March 1805

He is possibly the James Blake, 22 of Manchester who is listed on a Trinity House Petition - series 1 Book 11 page 17 (2)
     
Sources used
(1) The National Archives, Catalogue reference: ADM 36/15755
(2) Find My Past, Trinity House Petitions, Series 1 (copyright Society of Genealogists)


James Blake, aged 24 born in Donegal, Ireland.
Ship: HMS Colossus
Rank/Rating: Landsman

Service details (1)
HMS Colossus
Ship's pay book number: (SB 187)

Sources used
(1) The National Archives, Catalogue reference: ADM 36/15825


James Blake, aged 21 born in Sidmouth, Devon, England.
Ship: HMS Minotaur
Rank/Rating: Ordinary Seaman

Service details (1)
HMS Minotaur
Ship's pay book number: (SB 491)

There is a James Blake living at Stoke Damerel on the 1851 English Census born at Maker, Cornwall so not likely the correct one but he was born in 1782. I did not find a James Blake born at Sidmouth or closeby to that area looking at Find My Past.  

Sources used
(1) The National Archives, Catalogue reference: ADM 36/16055


James Blake aged 17 born in Newcastle Upon Tyne, Northumberland, England
Ship: HMS Leviathan
Rank/Rating: Landsman

Service details (1)
HMS Leviathan
24 June 1804
Comments: Volunteer

Ship\s pay book number: (SB 1715)
25 June 1804

Also found on Find My Past under Merchant Seaman  I found a long list of Blake males includes a number of James Blake but not this man will have to go back in and collect these another time.

Sources used:
(1)The National Archives: Catalogue reference: ADM 36/15837


John Blake, aged 29 born in Wexford, Ireland.
Ship: HMS Leviathan
Rank/Rating: Able Seaman

Personal details:
Notes : will and power to wife 15 March 1804

Service details (1)
HMS Leviathan
Ship's pay book number: (SB 1139)
23 November 1803
Rank/rating: Ordinary Seaman

24 November 1803

Sources used
(1)The National Archives, Catalogue reference ADM 36/15837


John Blake, aged 28 born in Dublin, Ireland.
Ship: HMS Naiad
Rank/Rating: Able Seaman

Service details (1)
HMS Naiad
Ship's pay book number: (SB 137)

Sources used
(1) The National Archives, Catalogue reference: ADM 36/16799


John Blake aged 16 born in Swansea, Glamorgan, Wales.
Ship: HMS Bellerophon
Rank/Rating: Boy

Service details (1)

Comments: from Salvador Del Mundo, United Brothers, Volunteer

HMS Bellerophon
Ship's pay book number: (B3C, no 30)
29 April 1805 to 17 December 1805 (was at Trafalgar)
Rank/rating: Boy

Ship's pay book number: (SB 868)
18 December 1805 to 2 February 1808
Rank/rating: Landsman

Comments: Run 2 February 1808 Plymouth, Devon, England

Sources used
(1) The National Archives, Catalogue reference: ADM 36/16498


John Blake aged 40 born in Catdown, Devon, England.
Ship: HMS Sirius
Rank/Rating: Yeoman of the Sheets
   

Personal details

Notes

TNA catalogue reference ADM 73/2 records that John Blake was admitted to Greenwich Hospital as an in-pensioner on 11 April 1811.
     
Service details
           
HMS Alarm
11 January 1794 to 6 May 1794
Rank/rating: Able Seaman

HMS Veteran
7 May 1794 to 13 October 1796
Rank/rating: Coxswain and Yeoman of the Signals

HMS Duke
14 October 1796 to 10 April 1798
Rank/rating: Yeoman of the Signals and Boatswain's Mate

HMS Europa
11 April 1798 to 26 September 1799
Rank/rating: Boatswain's Mate

HMS Temeraire
27 September 1799 to 5 October 1802
Rank/rating: Yeoman of the Signals and Boatswain's Mate

HMS Sirius
Ship's pay book number: (SB 108)
7 October 1802 to 8 May 1807 (Was at Trafalgar)
Rank/rating: Yeoman of the Signals

HMS Madras
9 May 1807 to 11 February 1808
Rank/rating: Able Seaman

There is a John Blake baptized at Torbryan Devon son of John and Mary Blake 1 Apr 1764 (3).
     
Sources used
(1) The National Archives, Catalogue reference: ADM 36/16854
(2) The National Archives, Catalogue reference: ADM 73/2
(3) Devon Baptisms 3066a/PR/1/2, South West Heritage Trust, viewed on Find My Past


Robert Blake aged 22 born in County Wexford, Ireland
Ship: HMS Prince
Rank/Rating: Landsman

Service details (1)

HMS Prince
Ship\s pay book number: (SB 131)
13 April 1804 

Sources used
(1) The National Archives, Catalogue reference: ADM 36/16274