Where's East Street/Road 1861 Cambridge?!

[bugbear]

I have a family, and I've found the 1841, 1851, and 1871 census entries for them.

Anderson Broom, b1806
Elizabeth Broom, b1803,
Anderson Broom, (son) b1833
Priscilla Broom, b1835
Robert Broom, b1840
Charles Broom, b1843

All born in Cambridge except Elizabeth, of Histon.

In 1841 they're all (except Charles!!) in a little alley of Staffordshire place (which leads of East Rd)
by 1851 we've added Charles, and moved to East Rd itself.
by 1871, all the children have left, and the parents are at 135 East Rd.

So - where (the heck) where they in 1861? This ought to be easy, but I've hammered various quearies at FindMyPast and Ancestry and come up empty. I can find any reports that this section of the 1861 Census is missing, so what am I doing wrong?

EDIT; "can't find", obviously 

 BugBear

[CaroleW]

FindMyPast are showing some parts of the Cambridge 1861 as missing

http://www.findmypast.co.uk/articles/census-for-england-wales-and-scotland-missing-pieces

[CaroleW]

1861 - Anderson jnr and Robert are in Dorset

RG9 Piece 1366 Folio 35 Page 13

[josey]

East Road seems to start at pce 1025 fol 19 p 31 with East Road Lodging House. It's in enumeration district 1 of St Benedict parish West Bramwell ward.

[CaroleW]

Freebmd has a marriage for Priscilla in 1854 to Either Thomas Foreman or Henry Underwood

[bugbear]

FindMyPast are showing some parts of the Cambridge 1861 as missing

http://www.findmypast.co.uk/articles/census-for-england-wales-and-scotland-missing-pieces

OK. 1851:
Civil Parish:    Cambridge St Andrew the Less
Ecclesiastical parish:    Christ Church
Registration district:    Cambridge
Sub-registration district:    St Andrew

1871:
Civil Parish:    St Andrew the Less
Ecclesiastical parish:    Christchurch
Registration district:    Cambridge
Sub-registration district:    St Andrew the Less

I don't think any of those/that is in the FindMyPast list of the missing.

 BugBear

[bugbear]

1861 - Anderson jnr and Robert are in Dorset

RG9 Piece 1366 Folio 35 Page 13

Hmm. They're looking pretty fragmented, as a family.

 BugBear

[bugbear]

Freebmd has a marriage for Priscilla in 1854 to Either Thomas Foreman or Henry Underwood

An A*sty tree owned by "CathyGill57" has Priscilla's first child by Thomas Foreman born 1857...

... in Queensland, Australia!

  BugBear

[jbml]

East Road takes you to Newmarket Road ... and Newmarket Road leads you to LOTS of parishes which are missing from 1861 (I think there's a whole Piece missing there ...)

So is it possible they moved out of town for a while, and subsequently moved back?