I have had a look through and actually Bosun and Bert are related on both sides - have highlighted where in blue:
Baxtalo Full Of Grace + Malpit Bring Me Sunshine
Grand parents
Dam side
Winterslow Endurance at Roshffilc
Muire So Bright Cum Baxtalo
GG Grandparents
Lougin Lothian
Harrop Eluva Lady at Winterslow
Delboy Brown of Subar
Storming lass
GGG Grandparents
Foulby Hephaestus of Lindall
Lougin Lucianna
Ravenshall Clayford Pipe Manor
Crystall Gail
Subar Mister Brown
Buckfold Tilly
Dancing Jester
Lady Kaider
GGGG Grandparents
Rocheby Sailing By
SHCH Cuanbank Island Mist at Foulby
Newinn Webley Scott at Amberside
Lougin Lyme
Ravenshall Piper
Ravenshall Bracken at Clayford
Stormley Craftsman at Ludska
Jamberet Jequity
Lawnwoods Corona
Bradking Brown Velvet of Subar
Philiger Rhapsody
High Barn Cinderella
Tyton Sir Alphonso at JimJoy
Jemma of Landysul
Penrherber Lord Toby of Nalexi
Mi Tierra
GGGGG Grandparents
Champion Kupras Master Mariner
Rockeby Shady Lady
Cannonridge Jackdaw
Foulby Classic
Lougin Lancer
SCH Newinn Greenfinch
Boothgates Headliner
Lougin Lucy Locket
SCH Poolstead Pipe Smoker
Ravenshall Star Dance
Ravenshall Bolas at Jaspartan
Rotdwood Rowntree at Ravenshall
Boothgates Headliner
Brodie Black Brown at Encore at St
Harrop Black Jack
Marjoncragg Baby Daisy Bud
Follytower Sound of Music at Lawnwood
Lawnwoods CrepeSusette
CH Fabracken Comedy Star
Bradking Cassandra
CH Warringahs Harlech
Subar Brown Brocade
Farley Green
High Barn Chocolate Buttons
Tyton Lord Hastings
Tyton Manata Trufa
Flindersia Spice of Life at Tyton
Pollyanna of Bryncerdin
Tyton Lord of Hastings
Gentle Pheobe
Clair Logis Fudge
Cordon Bleu Classique.
right that was the mothers side now for the Malmpits!
Malmpit Bring me Sunshine
Balnova Top Gun at Malmpit
Berolee Smarty Pants at Malmpit
Balnova Flower Pot Man
Balnova Miss Tickle
Larkvalley Graduate
Berolee Blues Singer
Foulby Hephaestus of Lindall
Balnova Just for Luck
Balnova Muffin Man
Charway Ballymagic at Balnova
Bradking Prospector of Larkvalley
Ballyhenry Bequest to Larkvalley
Rocheby Navy Blue
Berolee Black Magic
Rocheby Sailing By
SHCH Cuanbank Island Mist at Foulby
Brandhams Show Stopper
Ryedown Crown Jewel
SHCH Sandylands Royal Escort
Bootgates Miss Megan of Balnova
Brandhams ShowStopper
CH Charway Ballyinnet
Ch Fabracken Comedy Star
Bradking Cassandra
Captain Kirk of Rangeways
Larkvalley Prina Donna of Ballyhenry
Rocheby Sailing By
Cambremer Royal Velvet at Rochey
CH Cambremer Tom Cobbley of Charway
Berolee Delicious
CH Kupros Master Mariner
Rochey Shady Lady
Cannonbridge Jackdaw
Foulby Classic
Boothgates Kountry Kraft
Brandhams Hot Choccie for Oulsmi
Balnova Just For Laughs
Ryedown Skylark
SHCH Ransom Of Sandylands
Sandylands Bramble
SHCH Ransom Of Sandylands
SHCH Follytower Kirsty
Boothgates Kountry Kraft
Brandhams Hot Choccie for Oulsmi
CH Charway Ballywill Will
Charway Sea Aster
SHCH Martin of Madras
CH Poolstead PinUp of Fabracken
SHCH Ardmargha Mad Hatter
SHCH Bradking Black Charm
SHCH Bradking Cassidy
Rangeways Midnight Lady
Elmsmere Magic Man
Bradking Precious of Larkvalley
CH Kupros Master Mariner
Rochey Shady Lady
SHCH Rocheby Royal Oak
SHCH Cambermer All That Jazz
Charway Uncle Tom
SHCH Cambermer All That Jazz
SHCH Beltarn Diuma of Newinn
Heatherbourne Carissima of Berolee
You've also got quite a lot of well bred dogs there from what I can see - look for
SHCH = Show Champion (I did start to try and highlight these in red but it wouldn't let me

).
I remember Bert's breeder telling me that his distant relatives on his 5 gen pedigree on both sides, I think, were imported from the states. This makes me think that this may well be the case with Bosun too. I'll see if I can find out for sure and get back on this.
