Anika, this request is quite easy to answer.

- Go HERE.
- Enter "O'Sullivan's March" in the search box and click on the FIND button
- Select any version you would like in the key of your choosing. The PDF )Acrobat) version will the best quality to print, but the GIF or PNG format will give reasonable results.

For those who can handle ABC Notation here's one version that also includes lyrics.

X: 29
T:O'Sullivan's March (#78)
M:6/8
L:1/16
S:Rice - Walsh manuscript
R:March
F:http://jc.tzo.net/~jc/music/book/oneills/waifs/T/OSullivansMarch78.abc 2004-12-15 13:24:46 UT
K:G
D2|G2B2A2 B2d2d2|egfedB AcBAGE|G2GBAc B2BAGE|A2G2G2 GEDCA,B,|
D2B2A2 B2d2d2|egfedB AcBAGE|GDGBAc B2BAGE|A2G2G2 G4:|
|:de|fedefd fedefd|fedefd e2d2c2|BAGABc d2e2f2|gfefge d2B2G2|
gbagfe fagfed|egfedB AcBAGE|GDGBAc B2BAGE|A2G2G2 G4:|
%
% The above is an involved variant of a much simpler jig tune of
% identical name printed in "Lynch's Melodies of Ireland 1845";
% and in "O'Neill's Dance Music of Ireland 1907". The strain is
% ancient. Following is a quatrain of a folk song sung to it in
% the editor's boyhood days:
%         "There was an old woman tossed up in a blanket
%          Seventeen times as high as the moon;
%          What she was doing there I cannot imagine
%          But in her hand she carried a broom."
% All of which is reminiscent of the days of witchcraft.

Regards, John