Took a quick look
Catherine was still in Ireland in 1911
On 1901 census at
LINK - with husband Patrick and eight children
On 1911 census at 13 in Ballycomoyle (Hilltown, Westmeath)
LINK - a widow with four children
Patrick KENNEDY died on Mar 07 1910 aged 76 -
LINK last record # 26
The KENNEDY children's births are on irishgenealogy.ie
Sep 17 1881 James
Apr 15 1882 Mathew
Dec 12 1884 Mary (shown on census as Mary Anne)
Aug 12 1886 Kate
Jan 27 1890 Margaret
Sep 07 1892 Michael
Oct 05 1894 Patrick
Aug 05 1897 Rose (shown on census as Rosanna)
plus one further child that died before 1911 and probably 1901
all records show mother as Catherine or Kate
but note that the youngest child was Rose/Rosanna
Catherine died on Mar 10 1933 -
LINK