Victorian BMD index shows this marriage
Thomas LOVELL (born BALLARAT) m Mary Jane LAMBERT (b Allansford) 1880 reg no 4192
This matches the IGI entry found by JoRose. You can download the certificate immediately for about $17.50 and it should give you good information about their parents also.
If IGI has the correct parents for Thomas you can also download his birth certificate: (Lester looks like a mistranscription for Nestor - there are 9 children born toThomas Lovell and Mary Nestor)
Thomas LOVELL b Ballarat, parents Thomas LOVELL and Mary LESTER, 1855, reg no 4190
There are five children shown born to Thomas LOVELL and Mary Jane LAMBERT up to 1888, including Louisa Jane in 1886 as already given above. The registration number for her birth, in case you want to order it is 18485.
Judith