My McLean is:

Spouse: Margaret McLEAN
Birth Date: 1826
Birth Place: Liverpool, England
Death Date: 13 Jun 1873
Death Place: Ararat Hospital, Victoria
Burial Date: 1873
Burial Place: Great Western, Victoria
Ref Number: d. 3045

Spouse Notes:
Margaret died at age 47 of Hepatitis, on her death certificate it stated that she was a resident of Victoria for 24 years. It also stated that she married at age 27 at Sandhurst. Her children are listed as Charlotte, aged 17, Alexander aged 15, Neile aged 12.

Therefore she would have arrived around 1849 and the marriage date would be 1853.

Alexander's birth certificate states "six living", and that the marriage was in Hobart in 1943.

Margaret's maiden name is unclear because:
1. On Alexander's (1858) birth certificate it is stated as McLean.
2. On Neil's first marriage certificate it is stated to be Reilly.
3. On Neils death certificate it is stated to be Poole.
4. On Charlotte's marriage certificate it is stated to be McLean

Ref 2135 2453
1844 Royal Saxon from Mayo. Religion Protestant
George 22; James 22; John 45; John 16; Margaret 42; Margaret 18; Martha 20

from Mum
Rocky Flat John McLean miner barkly, James mclean miner Talbot; George McLean miner Beechworth.

Spouse Medical:
Died at Ararat Hospital of Hepatitis, doctor was William Sharp and daeth certificate stated she had Hepatitis for several years.

Maybe there is a connection??