Drew, I presume you don't have the entries from the pre 1855 gravestone index, here are the one for the surnames you mention.
Erected by Alex Douglas 10.12.1912 85, w Jane Downie 22.2.1890 72, chn Margt 1853 5y, John 10.11.1866 12, Jane 1.5.1871 11
Erected by David Scott mert Johnshaven 16.4.1826 76 imo fa Jas Scott 3.1788 76, mo Margt Walker 4.1788 79. David (Scott) b 3.1750, Eliz Blews b 5.1749, they were md 7.1.1773 & had the following chn Alex b 10.1773 d 3.1779,Margt b 1.1775 d 12.1785, David b 9.1776 d 3.1808, Jas b 3.1780, Wm b 1.1782 d 9.178?, John b 1.784 d 10.17??, Jean b 10.1785 d 7.178?, Kath b 7.1787 d 2.179(4)?
(Rest of this transcription is under turf)
Erected by Wm Blews, R? ? Officer in Gurdon imo fa Thos Blews skipper Johnshaven 1784 92, mo Janet Falconer 1775 86, 1w Hellen Innes 1758 22, their da Mary d inf, deceased chn by 2w Isobel Dickie, Robt 1765 3y, Wm 1783 (17)?Y, Barbara 1775 3y & Barbara 1777 6m.
On East Side: 179?. Wm Blews 27.1.1805 75, 2w Isobel Dickie 17.5.1798 62, two of theirs das viz Cleaphen 17.6.179? 22 & Janet 30.1.1799 39, s David d Port Royal Jamaica 17.9.1797 33. by John Simpson imo w Isabella Blues 26.5.1850 71
Erected by John largie mert Johnshaven imo fa John Largie sometime skipper in Johnshaven d 17(3)6? 42y, mo Christian Largie 1760 53, bro Jas d infancy & of his own family whose names are on the other side of this stone.
On East Side: John Largie b 7.1734 d 26.7.1809, Anne Blews b 5.1773 d 8.12.1821, they md 21.9.1759, following chn: John b 15.9.1760, Eliz 22.3.1762 6.7.1789, Anne b 26.12.1763, Jas b 10.12.1765, David b 28.8.1767 d 16.6.1788, Isobel b 18.9.1769, Susan b 13.1.1772, s Geo b 20.4.1774 d 10.9.1791. Eliz Largie 11.3.1884 87
Erected by David & Ann Mearns Shipmasters in Montrose imo gmo Margt Blues d 7.1.1819 60, gfa David Mearns 27.4.1841 89, bro & sister both d inf. And. Mearns d at sea on or about 24.12.1845 34, their mo Jean Mearns 23.7.1850 65, David Mearns Shipmaster 20.11.1852 43.
Erected 1801 by John Norie mason Haughs of Nether Benholm d 10.11.1825 91 imo w Jean Ross 1.2.1798 57, s Jas 5.1789 12, two chn d inf, da Jean 1.1840 74y
Isaac Norrie d Bervie 30.1.1880 46, w Jane Robertson d Montrose 15.5.1901 61y
I hope that something is of use - there's such a lot of good info!
I have almost completed transcribing the post 1855 stones, but I have not indexed them yet, so you'll have to bear with me whilst I check what I've done so far to see if your names crop up. I'll also check the plan to see if your names are amongst the ones not done yet.
Jean
