Name of “Rosa Beggs” comes up regularly in online searches, in May 2025, as the mother of Margaret Jane McDowell.

An old burial record is found in May 2025 at Waikaraka Cemetery, Onehunga, Auckland - ‘the resting place’ of many Bartlett familys:
ROW 26 contd..
1723
“In fond and Ioving memory of William beloved husband of Rose McDOWELL born 1 Jan 1851 died 18 Aug 1902 (verse) Also his dearly beloved wife Rose died 31 Mar 1924 aged 90 yrs A Loving wife and beloved mother”.

Her husband appears to be a “William McDOWELL”. The following record of marriage to "William Mcdowel" was found in May 2025 in the Ireland Marriage Records:
Bride: Rosa Beggs
Bride Age: 20
Bride Birth Year: 1834
Bride's Father: William Beggs
Groom: William Mcdowel
Groom Age: 21
Groom Birth Year: 1833
Groom's Father: Patrick Mcdowel
Marriage Date: 26 May 1854
Marriage Place: Newtownards, Down, Ireland
FHL Film Number: 101360
Reference ID: 2:3JF5VFD

From the above marriage record, Margaret Jane McDowell was born nearly a year before her married William McDowell. Was William the biological father of Margaret? We do not know at this stage.

Date and place of burial from the burial record for Rose Mcdowell, from Auckland Council cemetery search in May 2025:
Date of birth: Unknown
Date of death: 31 March 1924
Age at death: 90 years
Gender: Female
Region: Central and Hauraki Gulf Islands
Cemetery name: Waikaraka Cemetery
Plot location: Waikaraka Cemetery, Area 2, Block O, Plot 014B
Remains type: Body
Date of burial: 31 March 1924