RootsChat.Com

It hit me that I hadn't checked the OPR for the son Malcolm and I found him:

Another name equivalent is McLergan = McLean

Malcolm, son of Angus McEachern and Nanny McLergan, b 15 June 1823 in Kilchoman Parish. 

Portnahaven Parish was part of Kilchoman Parish off and on through history.  This may explain why we cannot find John's bapt - there are numerous gaps in the Kilchoman parish records.

I also searched the Islay OPR marriage records using the name spelling alternatives and found no marriage for Angus and Ann.

I found a death that MIGHT connect
LDS film 292881
Angus McEachern d 6 Dec 1862, age 78, Port Charlotte (which is in Kilchoman Parish)
wife - Anne McLergan
parents - John McEachern/Mary Morrison
registered by nephew Archibald McEachern
cause:  decay of nature

The interesting thing about this death is that it makes me question where this couple was in 1851.  It would also make me want to go over previous data to verify if the 1841 couple was actually the family needed.

Isn't genealogy fun???

Other links that might interest you

http://www.islayinfo.com/portnahaven.html

http://www.islayinfo.com/islay_churches.html

http://www.islay-north-churches.org/history.html

I'm going to reply twice - this one to help you connect with the Islay list.
Sue

This is the direct link to the Islay list sign on page
http://lists.rootsweb.ancestry.com/index/intl/SCT/SCT-ISLAY.html

It's a good idea to bookmark this page as a favourite (look up at the top of your page and you should see File Edit View History Bookmarks Tools Help- just click on bookmark)

At that point you clink on "subscribe".  It used to be an exceptionally busy list and some folks chose the Digest format to receive their messages (multiple messages in 1 email) but I find it easier to choose the messages that interest me by getting each message individually from the list.

Once you subscribe to the list (which sends an email to the administrator), a sign on email will be sent to you - keep it. 

While you are on the subscribing page, look down below to the Search and Browse options.  I often search past messages to look for clues or other people researching the same family.

After you receive your email, you can post to the list.  The confirmation email will give you instructions on how.  A big clue to getting good results from your query is to make your subject line a good one.  In your case, may I suggest  "John McKECHNIE b c1824 son of Angus McKECHNIE and Agnes McLEAN" then just put the same message you have used in you last query.

A cousin's wife is related to Donald Caskie et al and I did some of her family tree for her.
Does this help?

Descendants of Thomas Caskie
               
   1     [1] Thomas Caskie   b: 1811 in Of Kilarrow Parish      d: 03 Jul 1892 in 96 yrs; buried Kilarrow Cemetery
.      +Catherine McDonald   b: in Of Kilarrow Parish   m: 19 Jan 1830 in Kilarrow, Isle of Islay, Argyll, SCT   
...........   2     Joseph Caskie   b: 13 Mar 1831      
...........   2     Alexander Caskie   b: Bef. 11 Nov 1832      
...........   2     Thomas Caskie   b: Bef. 20 Dec 1835 in Bowmore, Isle of Islay, Argyll, SCT      
...........   2     James Caskie   b: 06 Jul 1838      
...........   2     Elisabeth Caskie   b: 01 Nov 1840 in Bowmore, Isle of Islay, Argyll, SCT      
...........   2     Malcolm "Donald" Caskie   b: Bef. 27 Dec 1844 in Bowmore, Isle of Islay, Argyll, SCT      
...........   2     John Caskie   b: Bef. 25 Sep 1845 in Bowmore, Isle of Islay, Argyll, SCT      d: 05 Feb 1868
      *2nd Wife of [1] Thomas Caskie:         
.      +Catherine Murphy/Murdoch   b: 26 Jun 1826 in Kilchoman, Isle of Islay, Argyll, SCT   m: 03 Dec 1848 in Kilarrow, Isle of Islay, Argyll, SCT   d: 10 Jan 1906 in 77 yrs; buried Kilarrow Cemetery
...........   2     Samuel Caskie   b: 17 Jan 1850      
...........   2     Margaret Caskie   b: 25 Nov 1851 in Kilarrow, Isle of Islay, Argyll, SCT      
...........   2     Archibald Caskie   b: 19 Apr 1854      
...........   2     Henry Caskie   b: 05 May 1856 in Kilarrow, Isle of Islay, Argyll, SCT      
...........   2     Ann Caskie   b: 07 Sep 1858 in Kilarrow, Isle of Islay, Argyll, SCT      
...........   2     Mary Caskie   b: 09 Nov 1860 in Kilarrow, Isle of Islay, Argyll, SCT      
...........   2     Neil Murdoch Caskie   b: 04 Oct 1861 in Jamieson St., Bowmore, Isle of Islay, Argyll, SCT      d: 14 Apr 1953 in Bowmore, Isle of Islay, Argyll, SCT
...............      +Margaret (Peggy) Currie   b: 02 Dec 1875   m: 22 Dec 1897 in Cornhaddock Farm, Greenock, Argyll, SCT   d: 14 Apr 1953
.........................   3     Catherine Caskie   b: 08 Jan 1899 in Bowmore, Isle of Islay, Argyll, SCT      d: 02 Nov 1990 in Bridge-of-Weir, SCT
.............................      +Alexander McIntyre         d: 18 Jun 1962 in Inverkip, SCT
.........................   3     Donald Currie "The Tartan Pimpernel" Caskie   b: 22 May 1902 in Jamieson St., Bowmore, Isle of Islay, Argyll, SCT      d: 27 Dec 1983 in Prob Edinburgh, SCT
.........................   3     Neil Murdoch Caskie   b: 18 Jan 1904 in Bowmore, Isle of Islay, Argyll, SCT      d: 30 Apr 1989 in Greenoch, Scotland
.........................   3     Archibald Caskie   b: 14 Feb 1906 in Bowmore, Isle of Islay, Argyll, SCT      d: 23 Oct 1972 in Greenoch, Scotland
.............................      +Jean Scott         
.........................   3     John Caskie   b: 01 Aug 1907 in Bowmore, Isle of Islay, Argyll, SCT      d: 21 Feb 1955 in Bowmore, Isle of Islay, Argyll, SCT
.............................      +Margaret McKinnon         
.........................   3     Colin Henry "Harry" Caskie   b: 12 Aug 1909 in Bowmore, Isle of Islay, Argyll, SCT      d: 19 Oct 1974 in Bowmore, Isle of Islay, Argyll, SCT
.............................      +Helen McIntyre         d: 24 Sep 1993
.........................   3     George Caskie   b: 1911 in Bowmore, Isle of Islay, Argyll, SCT      d: 1911 in Bowmore, Isle of Islay, Argyll, SCT
.........................   3     Dugald Caskie   b: 02 Oct 1913 in Bowmore, Isle of Islay, Argyll, SCT      d: 28 May 1995 in Alness, SCT
.............................      +Jean Turner Ritchie   b: 22 Jun 1914 in Greenoch, Scotland      d: 12 Feb 1967 in Bowmore, Isle of Islay, Argyll, SCT
.........................   3     [2] Thomas Caskie   b: 15 Apr 1900 in Bowmore, Isle of Islay, Argyll, SCT      d: 29 Apr 1993
.............................      +Kathleen Miller   b: 24 Aug 1908   m: Abt. 1934 in Isle of Islay, Argyll, SCT   d: 25 Dec 1944
.........................      *2nd Wife of [2] Thomas Caskie:         
.............................      +Margaret "Greta" Speirs      m: Abt. 1951   
...........   2     Elizabeth Caskie   b: 1864      
...........   2     Flora Caskie   b: 01 Jun 1866 in Kilarrow, Isle of Islay, Argyll, SCT      
...........   2     John Caskie   b: 14 Nov 1868 in Kilarrow, Isle of Islay, Argyll, SCT