Hello, Kylee,
Info on William Henry Lovett & May Madeline McQueen
Marriage
Dec ¼  1906   Kingston  2a  823
(Kingston upon Thames, south of the river Thames, Surrey)
1901 census
RG13/69   folio 111  page 30
Langford Road,  Fulham
William Lovett  age 37   Carpet Planner  b  Belgravia(Westminster, north of Thames)
Annie   wife  age 32    b    Camden Town, Middsx
George  son age 11    b   ditto   (north of Thames)
Isabel  dau  age 10   b    Wandsworth (south of Thames)
William   son age 9   b   ditto
Walter Santage ?   age 36 visitor   Bus Driver  b  Camden Town
1891 census
RG12/447   folio 115  page 17
3, Colman,  Wandsworth
William Lovett  age 27     Car conductor  b  Chelsea( same district as Belgravia,Westminster)
Ann C.  wife age 22    b  Kentish Town(same district as Camden Town)
Robert G    son age 2    b   ditto
Isabel   dau age 7mths,   b  Wandsworth
Interesting here that William is down as a Car conductor , also there was a visitor who was a Bus Driver in the 1901 census & son William went on to be  an Omnibus Driver himself.
Possible marriage for William Lovett
Sept. ¼  1887  Pancras  1b  168
 ( close to Kentish Town & Camden Town)
The family for May Medeline McQueen apperas to be complicated by widows remarrying thus creating stepchildren.
1901 census
RG13/606  folio 145   page 26
Croft Rd., Godlaming, Surrey
Henry Jones  age 26     Leather Cutter  b  Northampton
Alice    wife  age 35        b  Northampton
Edith McQueen  step dau age 13   b  Chelsea
Florence  McQueen  step dau  age 11   b   ditto
May  McQueen  step dau  age 10  b   ditto
Henry Jones  son age 5   b  Hants. Southampton
Frank  Jones  son age 3   b  Hants, Portsmouth
Mildred Jones  dau  age 1   b  Surrey, Godalming
1891 census
RG12/669   folio  98  page 12
4, High St., Snodland,  Kent
Thomas Stevens  age 57   retd Ship Inspector b  Hants, Portsea
Eliza A  wife  age 46  Draper & Milliner  b  Northampton
Annie C Walton   step dau  age 20  Dressmaker b  Kent Old Brompton
Amy  Walton step dau  age 19       b   ditto
Fanny  Walton step dau  age 18    Draper's Assist  b  ditto
John H Walton  strep son  age 13   b  Snodland
Alice M M  Walton  step dau  age 11  b   ditto
Nellie  Walton   step dau  age 10   b   ditto
Eliza Jones  mother in law  widow age 73   living on own means,  b  Lancs Liverpool
ALICE M McQUEEN  sister in law age 27   visitor  b  Northampton
Edith A  McQheen  niece  age 3   b  Chelsea
Florence M  Mcqueen  niece  age 1  b   ditto
Emmie M B McQueen  niece  age 3 mths  b  Battersea
Births
Edith Alice McQueen
Sept. ¼  1887   Chelsea   1a  3?8
Florence Beatrice McQueen
June ¼  1889   Chelsea   1a  340
I could find no Civil Registration birth entry for May Madeline McQueen but there was one for 
Emmie May B. McQueen
Mar ¼  1891  Wandsworth  1d  585
(I would think these are the same person, a mixup of names somewhere)
I hope this is clear & not too confusing,  if you wish to find siblings for Henry George Lovett, born 1911 Battersea, it would mean searcihng the pay to view site 
www.1837online.com & look thro' the surname Lovett for the mother's name McQueen shown alongside as after this date mother's names were shown.
I would suggest that getting the marriage cert for William Henry Lovett & May Madeline McQueen, Dec ¼1906 as this would give you their father's names & would confirm or not the info I have given you.
This can be purchased online.  price £7,  from
www.gro.gov.uk/gro/content/certificate/index.asp#0Any problems get back to me.
Have fun    

Meliora